{"title":"Benchmark","description":"","products":[{"product_id":"ahb2-silver","title":"AHB2 (Silver)","description":"\u003cp\u003e\u003cb\u003eTrue High-Resolution Performance\u003c\/b\u003e\nThe AHB2 is the ideal match to the performance limits of High-Resolution-Audio (HRA) formats. Benchmark's AHB2 power amplifier delivers musical details without introducing the masking effects of amplifier noise and distortion. The dynamic range of the AHB2 is 132 dB, making it 10 to 30 dB quieter than some of the very best reference-quality power amplifiers.\u003c\/p\u003e\n\u003cp\u003eThe frequency response of the AHB2 extends beyond 200 kHz. With the AHB2, you will discover previously overlooked nuances, dynamics, and detail in your favorite recordings and experience the full potential of the latest high-resolution 24-bit PCM and 1-bit DSD audio formats.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExperience the Emotion\u003c\/b\u003e\nThe musical details and emotion captured on today's finest High-Resolution-Audio recordings can only be fully appreciated when every component in the signal chain is capable of true high-resolution performance. Power amplifiers are a weak link in most audio systems. Most power amplifiers are well matched to the limitations of the CD format, but they fall well short of the capabilities of high-resolution formats. In contrast, the revolutionary AHB2 was specifically designed to deliver true high-resolution performance.\u003c\/p\u003e\n\u003cp\u003eThe AHB2 has a bipolar class-AB output stage that delivers high output current and low noise. The THX-AAA Technology provides accurate cancellation of zero-crossing errors, exceeding the performance of the best class-A amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeed-Forward Error Correction\u003c\/b\u003e\nTraditional class-AB amplifiers generate crossover distortion every time the push-pull output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels.\u003c\/p\u003e\n\u003cp\u003eIn contrast, class-A amplifiers eliminate crossover distortion by keeping all output devices turned on at all times. This eliminates the push-pull crossover region and this eliminates crossover distortion. Unfortunately. this improvement comes at the expense of high power consumption, poor damping, and limited output power.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe AHB2 Outperforms all Traditional Class-AB and Class-A Designs\u003c\/b\u003e\nTraditional class-AB designs attempt to control distortion through the use of feedback. Unfortunately, these feedback systems have a limited ability to reduce the abrupt transients that are caused by output device crossover transitions. Feedback networks attempt to correct errors after they occur. In contrast, feed-forward networks can prevent errors before they occur.\u003c\/p\u003e\n\u003cp\u003eThe THX-AAA  Technology includes an ultra-clean low-power error-correction amplifier that runs in parallel with the high-power main amplifier. The correction amplifier actively drives the output while the main output devices transition between push and pull states. Like a class-A amplifier, the AHB2 shows no signs of crossover distortion. The feed-forward system virtually eliminates the errors that would have been produced by the output devices in the main amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Efficiency - Green Never Sounded so Good!\u003c\/b\u003e\nThe THX-patented feed-forward error correction used in the AHB2 is so effective that biasing of the class-AB bipolar output devices can be reduced to unusually low levels. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. The benefit of low bias current is that very little power is wasted as heat when the amplifier is idle. The AHB2 only draws 12 W when idle, and less than 1\/2 W in standby.\u003c\/p\u003e\n\u003cp\u003eThe feed-forward error correction also allows the use of class-H tracking power supply rails without the usual distortion-performance penalty.  These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The AHB2 rivals the efficiency of class-D amplifiers while exceeding the sonic performance of power-hungry class-A designs. Green never sounded so good!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInnovative Low-Noise Power Supply\u003c\/b\u003e\nMost high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. In contrast, the AHB2 uses a tightly regulated resonant switching power supply that includes a very fast control loop. This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors. This active regulation is much more effective than capacitive energy-storage. Consequently, the peak power output of the AHB2 does not vary with line voltage or audio loading. The power supply rails maintain a constant voltage during audio peaks.\u003c\/p\u003e\n\u003cp\u003eThe power supply in the AHB2 switches at frequencies that are well above audible frequencies. This eliminates mechanical hum while significantly reducing the strength of stray magnetic fields. For a given amount of power, magnetic field strength decreases as switching frequency increases. The lower field strengths also provide a significant reduction in size. High-frequency transformers and coils are also much smaller than line-frequency components. This size reduction contributes to the small physical size of the AHB2.\u003c\/p\u003e\n\u003cp\u003eThe switching power supply used in the AHB2 is a zero-voltage switching, resonant power converter. This means that the power devices in the supply switch near zero voltage and zero current, eliminating the large switching transients produced by conventional switching power supplies. The power supply in the AHB2 is actually much cleaner and quieter than a conventional linear supply.\u003c\/p\u003e\n\u003cp\u003eThe power supply In the AHB2 is well over 90% efficient, much more efficient than linear supplies. This means that little power is lost to heat.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePassive Cooling\u003c\/b\u003e\nThe power-efficient AHB2 uses passive heat sinks to maintain cool operation. The AHB2 delivers high power without the need for fans. The unit runs cool, even when playing audio at full output levels. The absence of fan noise is absolutely essential in a high-resolution listening environment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow-Noise Input Amplifiers\u003c\/b\u003e\nThe precision balanced inputs on the AHB2 are equipped with low-noise input amplifiers. Benchmark considers balanced inputs essential in a true high-resolution system. If balanced sources are not available, Benchmark sells unbalanced to balanced adapter cables that extend a 3-wire balanced connection back to the unbalanced source connectors. These adapter cables provide many of the advantages of fully balanced interconnects while providing full compatibility with all unbalanced sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow Gain for Low System Noise\u003c\/b\u003e\nThe AHB2 is a low-gain design. Maximum output is not reached until the balanced inputs reach +22 dBu. This is a much higher signal level than is used at the input of most power amplifiers. High interface signal levels are required to achieve the best possible system signal to noise ratio (SNR). Most power amplifiers have far too much gain and consequently they suffer from poor noise performance. The AHB2 is 10 dB to 30 dB quieter than some of the very best power amplifiers on the market. A rear-panel gain switch can be used to set the AHB2 at higher gain settings if necessary. The low-gain setting is designed to interface directly with Benchmark DAC2 converters and other professional audio products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpeakON Output Connectors\u003c\/b\u003e\nThe AHB2 is equipped with high-quality binding posts, and SpeakON output connectors. The high-current SpeakON connectors are designed for heavy-duty commercial sound systems and provide much better electrical connections than binding posts. Benchmark highly recommends the use of the twist-lock SpeakON output connectors. We highly recommend the use of our top-quality professional-grade speaker cables.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA.H.B.\u003c\/b\u003e\nThe letters A, H, and B allude to the unique topology of the amplifier's output stage. The AHB2 combines class-AB, and class-H topologies using a feed-forward error correction system.\u003c\/p\u003e\n\u003cp\u003eBut there is much more to the story -\u003c\/p\u003e\n\u003cp\u003eThe initials A.H.B. can be found on many of the circuit diagrams of Benchmark's early products dating back as far as 1983. These are the initials of Benchmark's founder, Allen H. Burdick. He personally designed many of Benchmark's early products.\u003c\/p\u003e\n\u003cp\u003eAllen had a life-long passion for audio, and he became one of the leading innovators in the pro-audio industry. The AHB2 is named in his memory.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA New Benchmark\u003c\/b\u003e\nExperience high resolution audio as you have never heard it before. The AHB2 is a ground-breaking product. Benchmark has leveraged patented technology from THX to create an amplifier that defines a whole new level of performance. No audio amplifier delivers lower noise or lower distortion.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe All-Important First Watt\u003c\/b\u003e\nIn a normal listening environment, a comfortable listening level is usually reached with only a few watts of audio power. With high-efficiency speakers, most of the audio may be delivered at less than one watt. In either case, the 1st few watts of power are some of the most important to the listening experience. Unfortunately, most amplifiers perform poorly in this low-power region. This is the region where the non-musical distortion caused by conventional class-AB push-pull output stages can rise to a high percentage of the audio level. Likewise, the dead-band distortion in a class-D amplifier can be problematic at these low output levels. The AHB2 does not have either of these problems. It behaves like a class-A amplifier in the low-power region. The AHB2 is virtually distortion-free in the critical first few watts.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eClean to the Last Watt\u003c\/b\u003e\nClass-A amplifiers often perform poorly at high power levels. Likewise, class-D amplifiers often have slew-rate related distortion problems that show up at higher power levels. Class-AB amplifiers tend to do well at high levels, but usually show a gradual increase in distortion energy as the output increases. In contrast to these conventional designs, the AHB2 remains virtually distortion free to the last watt.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExtended Frequency Response\u003c\/b\u003e\nThe frequency response of the AHB2 extends beyond 200 kHz, to deliver the ultrasonic detail and fast transients captured by high-resolution recordings. At the other end of the audio spectrum, the low-frequency response extends below 0.1 Hz, for solid well-controlled bass.\u003c\/p\u003e\n\u003cp\u003eThe extended frequency response delivers a nearly perfect impulse response, and a nearly perfect phase response, over the entire audio spectrum.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe AHB2 Eliminates the Weak Link\u003c\/b\u003e\nOther than loudspeakers, power amplifiers are usually the weakest link in the audio chain. Until now, high-resolution recording formats and converter technology have rapidly outpaced the development of audio power amplifiers. For example, Benchmark DAC2 D\/A converters outperform most high-end power amplifiers by very significant margins.\u003c\/p\u003e\n\u003cp\u003eMost power amplifiers limit system noise performance to the equivalent of a 16 to 18-bit digital system. The differences between 16-bit and 24-bit recordings cannot be experienced if the power amplifier can only deliver 16-bit noise performance. In most audio systems, the details captured by today's high-resolution 24-bit PCM systems are completely lost in a veil of amplifier noise and distortion.\u003c\/p\u003e\n\u003cp\u003eBenchmark set out to build an amplifier that would deliver the full performance of their flagship 24-bit 192-kHz D\/A converters. The AHB2 realizes this goal, and it is the first power amplifier that meets or exceeds the performance of the DAC2 D\/A converter.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDifficult Speaker Loads are Handled With Ease\u003c\/b\u003e\nMany loudspeakers have frequencies at which their impedance drops to levels that are much lower than the \"nominal\" impedance. The AHB2 drives these low impedance regions with ease. Loads as low as 2.2 Ohms can be cleanly driven to full output levels. Most power amplifiers produce higher levels of distortion when the load impedance decreases. In contrast, the feed-forward error correction system in the AHB2 prevents any increase in distortion. The AHB2 produces almost no measurable distortion at any rated load condition.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Damping Factor\u003c\/b\u003e\nThe AHB2 has a high damping factor that augments its extended low-end to deliver solid, well-controlled bass. This high damping factor also keeps the frequency response absolutely flat while driving speakers with large frequency-dependent impedance variations.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Output Current\u003c\/b\u003e\nThe AHB2 can deliver up to 18 A to each channel simultaneously. This robust drive current easily handles some of the most demanding loudspeakers. The AHB2 stays clean while delivering high current.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDistortion is Below Audibility\u003c\/b\u003e\nThe AHB2 will never produce audible distortion, In most playback systems, the distortion produced by the AHB2 will never even reach the 0 dB SPL threshold of hearing. This means that the distortion could not be heard, even if it could be played while the music was muted.\u003c\/p\u003e\n\u003cp\u003eThe AHB2 allows you to escape the distortion limitations of classic amplifier topologies and enter the world of high-resolution audio playback.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBipolar Class-AB Output Stage\u003c\/b\u003e\nThe AHB2 has a bipolar class-AB output stage that delivers high output current and low noise. The THX-AAA Technology provides accurate cancellation of zero-crossing errors, exceeding the performance of the best class-A amplifier.\nFeed-Forward Error Correction\u003c\/p\u003e\n\u003cp\u003eTraditional class-AB amplifiers generate crossover distortion every time the push-pull output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels.\u003c\/p\u003e\n\u003cp\u003eIn contrast, class-A amplifiers eliminate crossover distortion by keeping all output devices turned on at all times. This eliminates the push-pull crossover region and this eliminates crossover distortion. Unfortunately. this improvement comes at the expense of high power consumption, poor damping, and limited output power.\nThe AHB2 Outperforms all Traditional Class-AB and Class-A Designs\u003c\/p\u003e\n\u003cp\u003eTraditional class-AB designs attempt to control distortion through the use of feedback. Unfortunately, these feedback systems have a limited ability to reduce the abrupt transients that are caused by output device crossover transitions. Feedback networks attempt to correct errors after they occur. In contrast, feed-forward networks can prevent errors before they occur.\u003c\/p\u003e\n\u003cp\u003eThe THX-AAA  Technology includes an ultra-clean low-power error-correction amplifier that runs in parallel with the high-power main amplifier. The correction amplifier actively drives the output while the main output devices transition between push and pull states. Like a class-A amplifier, the AHB2 shows no signs of crossover distortion. The feed-forward system virtually eliminates the errors that would have been produced by the output devices in the main amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Efficiency - Green Never Sounded so Good!\u003c\/b\u003e\nThe THX-patented feed-forward error correction used in the AHB2 is so effective that biasing of the class-AB bipolar output devices can be reduced to unusually low levels. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. The benefit of low bias current is that very little power is wasted as heat when the amplifier is idle. The AHB2 only draws 12 W when idle, and less than 1\/2 W in standby.\u003c\/p\u003e\n\u003cp\u003eThe feed-forward error correction also allows the use of class-H tracking power supply rails without the usual distortion-performance penalty.  These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The AHB2 rivals the efficiency of class-D amplifiers while exceeding the sonic performance of power-hungry class-A designs. Green never sounded so good!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInnovative Low-Noise Power Supply\u003c\/b\u003e\nMost high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. In contrast, the AHB2 uses a tightly regulated resonant switching power supply that includes a very fast control loop. This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors. This active regulation is much more effective than capacitive energy-storage. Consequently, the peak power output of the AHB2 does not vary with line voltage or audio loading. The power supply rails maintain a constant voltage during audio peaks.\u003c\/p\u003e\n\u003cp\u003eThe power supply in the AHB2 switches at frequencies that are well above audible frequencies. This eliminates mechanical hum while significantly reducing the strength of stray magnetic fields. For a given amount of power, magnetic field strength decreases as switching frequency increases. The lower field strengths also provide a significant reduction in size. High-frequency transformers and coils are also much smaller than line-frequency components. This size reduction contributes to the small physical size of the AHB2.\u003c\/p\u003e\n\u003cp\u003eThe switching power supply used in the AHB2 is a zero-voltage switching, resonant power converter. This means that the power devices in the supply switch near zero voltage and zero current, eliminating the large switching transients produced by conventional switching power supplies. The power supply in the AHB2 is actually much cleaner and quieter than a conventional linear supply.\u003c\/p\u003e\n\u003cp\u003eThe power supply In the AHB2 is well over 90% efficient, much more efficient than linear supplies. This means that little power is lost to heat.\nPassive Cooling\u003c\/p\u003e\n\u003cp\u003eThe power-efficient AHB2 uses passive heat sinks to maintain cool operation. The AHB2 delivers high power without the need for fans. The unit runs cool, even when playing audio at full output levels. The absence of fan noise is absolutely essential in a high-resolution listening environment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow-Noise Input Amplifiers\u003c\/b\u003e\nThe precision balanced inputs on the AHB2 are equipped with low-noise input amplifiers. Benchmark considers balanced inputs essential in a true high-resolution system. If balanced sources are not available, Benchmark sells unbalanced to balanced adapter cables that extend a 3-wire balanced connection back to the unbalanced source connectors. These adapter cables provide many of the advantages of fully balanced interconnects while providing full compatibility with all unbalanced sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow Gain for Low System Noise\u003c\/b\u003e\nThe AHB2 is a low-gain design. Maximum output is not reached until the balanced inputs reach +22 dBu. This is a much higher signal level than is used at the input of most power amplifiers. High interface signal levels are required to achieve the best possible system signal to noise ratio (SNR). Most power amplifiers have far too much gain and consequently they suffer from poor noise performance. The AHB2 is 10 dB to 30 dB quieter than some of the very best power amplifiers on the market. A rear-panel gain switch can be used to set the AHB2 at higher gain settings if necessary. The low-gain setting is designed to interface directly with Benchmark DAC2 converters and other professional audio products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpeakON Output Connectors\u003c\/b\u003e\nThe AHB2 is equipped with high-quality binding posts, and SpeakON output connectors. The high-current SpeakON connectors are designed for heavy-duty commercial sound systems and provide much better electrical connections than binding posts. Benchmark highly recommends the use of the twist-lock SpeakON output connectors. We highly recommend the use of our top-quality professional-grade speaker cables.\nA.H.B.\u003c\/p\u003e\n\u003cp\u003eThe letters A, H, and B allude to the unique topology of the amplifier's output stage. The AHB2 combines class-AB, and class-H topologies using a feed-forward error correction system.\u003c\/p\u003e\n\u003cp\u003eBut there is much more to the story -\u003c\/p\u003e\n\u003cp\u003eThe initials A.H.B. can be found on many of the circuit diagrams of Benchmark's early products dating back as far as 1983. These are the initials of Benchmark's founder, Allen H. Burdick. He personally designed many of Benchmark's early products.\u003c\/p\u003e\n\u003cp\u003eAllen had a life-long passion for audio, and he became one of the leading innovators in the pro-audio industry. The AHB2 is named in his memory.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466779132223,"sku":"11428","price":5745.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/11428_full.jpg?v=1759898489"},{"product_id":"dac3-hgc-silver","title":"DAC3 HGC (Silver)","description":"\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReference Performance\u003c\/b\u003e\nThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDAC3 vs. DAC2\u003c\/b\u003e\n\u003c\/p\u003e\u003cli\u003eThe DAC3 builds upon Benchmark's highly successful DAC2 product family. The DAC3 maintains the familiar DAC2 form factor and feature set, but adds the higher performance available from the new ES9028PRO D\/A converter. The DAC3 offers the following improvements over the DAC2:\u003c\/li\u003e\u003cli\u003eActive 2nd Harmonic Compensation\u003c\/li\u003e\u003cli\u003eActive 3rd Harmonic Compensation\u003c\/li\u003e\u003cli\u003eLower THD+N\u003c\/li\u003e\u003cli\u003eLower passband ripple\u003c\/li\u003e\u003cli\u003eImproved frequency response\u003c\/li\u003e\u003cli\u003eFaster PLL lock times\u003c\/li\u003e\u003cli\u003eFaster switching between input signals\u003c\/li\u003e\n\u003cb\u003eDAC3 vs. DAC1\u003c\/b\u003e\nThe DAC3 and DAC2 added these features that were not found on the DAC1\n\u003cli\u003eAsynchronous 192kHz USB Audio 2.0\u003c\/li\u003e\u003cli\u003e32-bit D\/A conversion system\u003c\/li\u003e\u003cli\u003eWord Length Display\u003c\/li\u003e\u003cli\u003eSample Rate Display\u003c\/li\u003e\u003cli\u003ePolarity Control\u003c\/li\u003e\u003cli\u003eDirect DSD D\/A Conversion\u003c\/li\u003e\u003cli\u003e-20 dB DIM\u003c\/li\u003e\u003cli\u003eBi-Directional 12V Trigger\u003c\/li\u003e\u003cli\u003ePower Switch with Auto-On Function\u003c\/li\u003e\u003cli\u003eHome Theater Bypass\u003c\/li\u003e\u003cli\u003eDigital Pass-Through\u003c\/li\u003e\u003cli\u003eHigh-Headroom DSP\u003c\/li\u003e\u003cli\u003eDual-Domain Hybrid Gain Control\u003c\/li\u003e\u003cli\u003eAdditional I\/O\u003c\/li\u003e\n\u003cb\u003eNative DSD Conversion\u003c\/b\u003e\nAll digital inputs on the DAC3 support native PCM or DSD conversion. From any input, DSD is transported with bit accuracy over DoP 1.1. DSD and PCM are both natively converted to analog. There are no DSD to PCM or PCM to DSD conversions to compromise the quality of the music. The DAC3 conversion system seamlessly switches between native PCM and native DSD conversion. DSD over DoP 1.1 is supported by many media players, and DSD downloads are now available from several sources.\n\u003cp\u003e\u003cb\u003eDirect Connectivity to Power Amplifiers\u003c\/b\u003e\nBenchmark DAC1, DAC2, and DAC3 converters are designed to directly drive power amplifiers and speakers. Benchmark converters feature adjustable low-impedance passive attenuators at the XLR outputs that can be used to optimize the interface to the power amplifier (or powered monitor). This unique Benchmark feature optimizes the gain staging between the DAC and the power amplifier. Proper gain staging cannot be overemphasised. When audio stages are properly matched, each component in the audio chain is able to operate at its optimum signal level, and the system performance is significantly improved.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSonically-Neutral Studio Monitoring\u003c\/b\u003e\nAll Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add \"euphonic\" coloration to the audio. Instead it is designed to be as uncolored and natural as possible.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eStep Into the Studio\u003c\/b\u003e\nWhen Benchmark's professional converters are used in hi-fi applications, studio-quality sound can be enjoyed in a home environment. Enjoy pure music without any coloration from the electronics. Hear the music exactly the way it was heard in the studio, and exactly the way the artists intended.\u003c\/p\u003e\n\u003cp\u003eDiscover the natural, uncolored, analog sound of the DAC3.\nSit in the Performance Space\u003c\/p\u003e\n\u003cp\u003eTransparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.\u003c\/p\u003e\n\u003cp\u003eThis experience of \"being there\" cannot be created by systems that are designed to add \"warmth\" or \"euphonic color\" to the music.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466879041855,"sku":"13372","price":3449.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/13372_full.jpg?v=1759906140"},{"product_id":"dac3-l-black","title":"DAC3 L (Black)","description":"\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReference Performance\u003c\/b\u003e\nThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDAC3 vs. DAC2\u003c\/b\u003e\nThe DAC3 builds upon Benchmark's highly successful DAC2 product family. The DAC3 maintains the familiar DAC2 form factor and feature set, but adds the higher performance available from the new ES9028PRO D\/A converter. The DAC3 offers the following improvements over the DAC2:\nActive 2nd Harmonic Compensation\nActive 3rd Harmonic Compensation\nLower THD+N\nLower passband ripple\nImproved frequency response\nFaster PLL lock times\nFaster switching between input signals\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDAC3 vs. DAC1\u003c\/b\u003e\nThe DAC3 and DAC2 added these features that were not found on the DAC1\u003c\/p\u003e\n\u003cp\u003eAsynchronous 192kHz USB Audio 2.0\n32-bit D\/A conversion system\nWord Length Display\nSample Rate Display\nPolarity Control\nDirect DSD D\/A Conversion\n-20 dB DIM\nBi-Directional 12V Trigger\nPower Switch with Auto-On Function\nHome Theater Bypass\nDigital Pass-Through\nHigh-Headroom DSP\nDual-Domain Hybrid Gain Control\nAdditional I\/O\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNative DSD Conversion\u003c\/b\u003e\nAll digital inputs on the DAC3 support native PCM or DSD conversion. From any input, DSD is transported with bit accuracy over DoP 1.1. DSD and PCM are both natively converted to analog. There are no DSD to PCM or PCM to DSD conversions to compromise the quality of the music. The DAC3 conversion system seamlessly switches between native PCM and native DSD conversion. DSD over DoP 1.1 is supported by many media players, and DSD downloads are now available from several sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDirect Connectivity to Power Amplifiers\u003c\/b\u003e\nBenchmark DAC1, DAC2, and DAC3 converters are designed to directly drive power amplifiers and speakers. Benchmark converters feature adjustable low-impedance passive attenuators at the XLR outputs that can be used to optimize the interface to the power amplifier (or powered monitor). This unique Benchmark feature optimizes the gain staging between the DAC and the power amplifier. Proper gain staging cannot be overemphasised. When audio stages are properly matched, each component in the audio chain is able to operate at its optimum signal level, and the system performance is significantly improved.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSonically-Neutral Studio Monitoring\u003c\/b\u003e\nAll Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add \"euphonic\" coloration to the audio. Instead it is designed to be as uncolored and natural as possible.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eStep Into the Studio\u003c\/b\u003e\nWhen Benchmark's professional converters are used in hi-fi applications, studio-quality sound can be enjoyed in a home environment. Enjoy pure music without any coloration from the electronics. Hear the music exactly the way it was heard in the studio, and exactly the way the artists intended.\u003c\/p\u003e\n\u003cp\u003eDiscover the natural, uncolored, analog sound of the DAC3.\nSit in the Performance Space\u003c\/p\u003e\n\u003cp\u003eTransparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.\u003c\/p\u003e\n\u003cp\u003eThis experience of \"being there\" cannot be created by systems that are designed to add \"warmth\" or \"euphonic color\" to the music.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466879107391,"sku":"13375","price":2995.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/13375_full.jpg?v=1759906151"},{"product_id":"dac3-l-with-remote-black","title":"DAC3 L with Remote (Black)","description":"\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003eReference Performance\nThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e\n\u003cp\u003eDAC3 vs. DAC2\nThe DAC3 builds upon Benchmark's highly successful DAC2 product family. The DAC3 maintains the familiar DAC2 form factor and feature set, but adds the higher performance available from the new ES9028PRO D\/A converter. The DAC3 offers the following improvements over the DAC2:\nActive 2nd Harmonic Compensation\nActive 3rd Harmonic Compensation\nLower THD+N\nLower passband ripple\nImproved frequency response\nFaster PLL lock times\nFaster switching between input signals\u003c\/p\u003e\n\u003cp\u003eDAC3 vs. DAC1\nThe DAC3 and DAC2 added these features that were not found on the DAC1\u003c\/p\u003e\n\u003cp\u003eAsynchronous 192kHz USB Audio 2.0\n32-bit D\/A conversion system\nWord Length Display\nSample Rate Display\nPolarity Control\nDirect DSD D\/A Conversion\n-20 dB DIM\nBi-Directional 12V Trigger\nPower Switch with Auto-On Function\nHome Theater Bypass\nDigital Pass-Through\nHigh-Headroom DSP\nDual-Domain Hybrid Gain Control\nAdditional I\/O\u003c\/p\u003e\n\u003cp\u003eNative DSD Conversion\nAll digital inputs on the DAC3 support native PCM or DSD conversion. From any input, DSD is transported with bit accuracy over DoP 1.1. DSD and PCM are both natively converted to analog. There are no DSD to PCM or PCM to DSD conversions to compromise the quality of the music. The DAC3 conversion system seamlessly switches between native PCM and native DSD conversion. DSD over DoP 1.1 is supported by many media players, and DSD downloads are now available from several sources.\u003c\/p\u003e\n\u003cp\u003eDirect Connectivity to Power Amplifiers\nBenchmark DAC1, DAC2, and DAC3 converters are designed to directly drive power amplifiers and speakers. Benchmark converters feature adjustable low-impedance passive attenuators at the XLR outputs that can be used to optimize the interface to the power amplifier (or powered monitor). This unique Benchmark feature optimizes the gain staging between the DAC and the power amplifier. Proper gain staging cannot be overemphasised. When audio stages are properly matched, each component in the audio chain is able to operate at its optimum signal level, and the system performance is significantly improved.\u003c\/p\u003e\n\u003cp\u003eSonically-Neutral Studio Monitoring\nAll Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add \"euphonic\" coloration to the audio. Instead it is designed to be as uncolored and natural as possible.\u003c\/p\u003e\n\u003cp\u003eStep Into the Studio\nWhen Benchmark's professional converters are used in hi-fi applications, studio-quality sound can be enjoyed in a home environment. Enjoy pure music without any coloration from the electronics. Hear the music exactly the way it was heard in the studio, and exactly the way the artists intended.\u003c\/p\u003e\n\u003cp\u003eDiscover the natural, uncolored, analog sound of the DAC3.\nSit in the Performance Space\u003c\/p\u003e\n\u003cp\u003eTransparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.\u003c\/p\u003e\n\u003cp\u003eThis experience of \"being there\" cannot be created by systems that are designed to add \"warmth\" or \"euphonic color\" to the music.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466943856959,"sku":"14712","price":3149.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/14712_full.jpg?v=1759913311"},{"product_id":"dac3-b-black","title":"DAC3 B (Black)","description":"\u003cp\u003eThe DAC3 B is the ideal converter to use in front of Benchmark's HPA4 headphone amplifier or LA4 line amplifier. It is also ideal for many professional studio applications. It delivers the full performance of the flagship DAC3 HGC, but eliminates the volume control, the analog inputs, the mute and polarity controls, and the headphone amplifier.\u003c\/p\u003e\n\u003cp\u003eTo make system integration easy, the DAC3 B retains IR remote control (handset optional), 12 V trigger,  and the programmable auto-on feature. The DAC3 B adds a control-lock feature that turns off the remote control and locks the keypad to prevent tampering and accidental changes. The optional 1\/2-width rack-mount faceplate allows the mounting of two units in a single 1-RU rack space.\u003c\/p\u003e\n\u003cp\u003eThe DAC3 B sounds exactly like the DAC3 HGC because it uses the exact same circuit board and the exact same audio path. Benchmark has simply eliminated the unnecessary parts to deliver a stripped down race car of a converter. If you want a basic D\/A converter that delivers the finest conversion available, the DAC3 B is for you.\u003c\/p\u003e\n\u003cp\u003eThe DAC3 B  is a 2-channel D\/A converter featuring the new ESS Technologies ES9028PRO converter chip. The DAC3 converter has lower THD and THD+N noise than Benchmark's DAC2 converters.\u003c\/p\u003e\n\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReference Performance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466961158463,"sku":"15059","price":2695.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15059_full.jpg?v=1759915258"},{"product_id":"dac3-b-silver","title":"DAC3 B (Silver)","description":"\u003cp\u003eThe DAC3 B is the ideal converter to use in front of Benchmark's HPA4 headphone amplifier or LA4 line amplifier. It is also ideal for many professional studio applications. It delivers the full performance of the flagship DAC3 HGC, but eliminates the volume control, the analog inputs, the mute and polarity controls, and the headphone amplifier.\u003c\/p\u003e\n\u003cp\u003eTo make system integration easy, the DAC3 B retains IR remote control (handset optional), 12 V trigger,  and the programmable auto-on feature. The DAC3 B adds a control-lock feature that turns off the remote control and locks the keypad to prevent tampering and accidental changes. The optional 1\/2-width rack-mount faceplate allows the mounting of two units in a single 1-RU rack space.\u003c\/p\u003e\n\u003cp\u003eThe DAC3 B sounds exactly like the DAC3 HGC because it uses the exact same circuit board and the exact same audio path. Benchmark has simply eliminated the unnecessary parts to deliver a stripped down race car of a converter. If you want a basic D\/A converter that delivers the finest conversion available, the DAC3 B is for you.\u003c\/p\u003e\n\u003cp\u003eThe DAC3 B  is a 2-channel D\/A converter featuring the new ESS Technologies ES9028PRO converter chip. The DAC3 converter has lower THD and THD+N noise than Benchmark's DAC2 converters.\u003c\/p\u003e\n\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReference Performance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466961223999,"sku":"15060","price":2695.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15060_full.jpg?v=1759915268"},{"product_id":"la4-with-remote-control-silver","title":"LA4 with Remote Control (Silver)","description":"\u003cp\u003eThe LA4 is well-suited to customers who do not need the headphone amplifier.\u003c\/p\u003e\n\u003cp\u003eThe LA4 is a line-level preamplifier that is designed to sit between a reference-quality D\/A converter and a reference-quality power amplifier. This is not an easy task. Most hi-fi preamplifiers introduce significant noise and distortion due to the necessity to provide volume control and input switching. To solve this problem, the LA4 is completely relay controlled and features analog amplifiers with vanishingly low distortion. It features relay gain control, relay input selection, and relay muting. The entire system incorporates the finest gold-contact relays available. The gain control has 256 steps in 0.5 dB increments. It also features a relay-controlled balance adjustment. Relay closures are precisely timed to deliver silky-smooth volume changes. No other relay gain control offers this level of precision or performance. The LA4 includes 2 independent 256-step attenuators: one for the left channel and one for the right channel. To make this all happen, the LA4 includes a total of 40 precision relays that switch high-precision metal-film resistors.\u003c\/p\u003e\n\u003cp\u003e100% Analog Signal Path\u003c\/p\u003e\n\u003cp\u003eThe LA4 is 100% analog. It is designed to be driven from external D\/A converters and external line-level analog sources. The LA4 is designed to drive any professional or hi-fi power amplifier. The LA4 provides the ultimate analog signal path between inputs and outputs. The LA4 eclipses the performance of typical high-end hi-fi preamplifiers by achieving much lower noise and distortion.\nSystem Optimization\u003c\/p\u003e\n\u003cp\u003eAt any volume setting, the relay-controlled gain stage provides an optimized attenuator to match the upstream analog source to the downstream power amplifier. This optimization of the gain staging delivers the best possible system SNR for each volume setting. The LA4 will match high-output D\/A converters to low-input power amplifiers and vice-versa. It will also provide an optimized interface to and from balanced and unbalanced devices. In addition, it will match high-level professional balanced interfaces to low-level hi-fi balanced interfaces (in either direction).\nSpeed and Precision\u003c\/p\u003e\n\u003cp\u003eThe bandwidth of the LA4 extends from 0.01 Hz to over 500 kHz. This means that the LA4 delivers very precise amplitude and phase accuracy over the entire audio bandwidth. Wave shapes are accurately reproduced, and the entire spectrum is delivered with precise timing. The LA4 will deliver musical overtones with life-like accuracy. This means that musical instruments are rendered without changing their sonic character.\nBalanced and Unbalanced I\/O\u003c\/p\u003e\n\u003cp\u003eThe LA4 features two balanced stereo inputs and two unbalanced stereo inputs. The line amplifier provides one balanced stereo output, one balanced mono sum, and one unbalanced stereo output.\nSystem Integration\u003c\/p\u003e\n\u003cp\u003eThe LA4 includes IR remote control and can be operated using the optional Benchmark remote. The LA4 is designed to work with the Benchmark DAC2 and DAC3 converters but may be driven from any high-end D\/A converter. When paired with a Benchmark DAC, a single remote control will operate both units.\u003c\/p\u003e\n\u003cp\u003eThe LA4 (line amplifier) or HPA4 (line amplifier + headphone amplifier) are the perfect complement to the Benchmark AHB2. These may be the only preamplifiers or line amplifiers that exceeds the signal to noise ratio of the ultra-quiet AHB2. This means that the LA4 will extract the full performance of the AHB2. In contrast, other preamplifiers limit the system noise performance because they cannot match the SNR performance of the AHB2. The LA4 and HPA4 are the only line amplifier\/preamplifiers that we recommend inserting between a DAC and the AHB2. The LA4 or HPA4 can be inserted between a Benchmark DAC3 and AHB2 without degrading the system noise performance. With the LA4 or HPA4 inserted, the DAC3's 32-bit digital gain control is replaced by a more-resolving fully-analog relay gain control.\u003c\/p\u003e\n\u003cp\u003eTwo bidirectional 12V trigger ports can be used to link the LA4 with external D\/A converters and power amplifiers. The trigger signal controls the power-up and power-down sequencing of the entire audio system. The trigger ports are compatible with most industry-standard trigger input or output ports, but can communicate bidirectionally with other Benchmark products.\nTouch Screen\u003c\/p\u003e\n\u003cp\u003eThe touch screen provides easy access to advanced features such as balance control, input level offsets, input names, screen dimming, remote control, and function locking. Help screens explain the special functions.\u003c\/p\u003e\n\u003cp\u003eRotary Encoder\u003c\/p\u003e\n\u003cp\u003eThe volume control knob features a high-quality optical encoder that is rated for heavy use. An acceleration feature makes it easy to move through the 256 volume steps while maintaining 0.5 dB\/step resolution. A press of the control knob will wake turn on or brighten the screen if you are using the screen sleep or auto-dim functions.\nConvenience Features\u003c\/p\u003e\n\u003cp\u003eThe LA4 includes an on-screen mute button for the line outputs. Outputs can also be muted with the volume knob or with the optional remote control.\u003c\/p\u003e\n\u003cp\u003eThe LA4 includes an on-screen -20 dB \"audio dim\" button that instantly reduces the level by 20 dB. This function provides a temporary volume reduction and makes it easy return to the previous listening level. This control makes it easy to transition between a normal listening level and a background level. The -20 dB \"dim\" function is also accessible from the optional remote control.\u003c\/p\u003e\n\u003cp\u003eInputs may be renamed and unused inputs may be disabled. Input levels can be trimmed to provide input-to-input level matching.\u003c\/p\u003e\n\u003cp\u003eScreen brightness is adjustable and timers can be set to dim or shut off the display. The screen can be locked to prevent access to advanced features.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466961289535,"sku":"15061","price":4395.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15061_full.jpg?v=1759915276"},{"product_id":"la4-with-remote-control-black","title":"LA4 with Remote Control (Black)","description":"\u003cp\u003eThe LA4 is well-suited to customers who do not need the headphone amplifier.\u003c\/p\u003e\n\u003cp\u003eThe LA4 is a line-level preamplifier that is designed to sit between a reference-quality D\/A converter and a reference-quality power amplifier. This is not an easy task. Most hi-fi preamplifiers introduce significant noise and distortion due to the necessity to provide volume control and input switching. To solve this problem, the LA4 is completely relay controlled and features analog amplifiers with vanishingly low distortion. It features relay gain control, relay input selection, and relay muting. The entire system incorporates the finest gold-contact relays available. The gain control has 256 steps in 0.5 dB increments. It also features a relay-controlled balance adjustment. Relay closures are precisely timed to deliver silky-smooth volume changes. No other relay gain control offers this level of precision or performance. The LA4 includes 2 independent 256-step attenuators: one for the left channel and one for the right channel. To make this all happen, the LA4 includes a total of 40 precision relays that switch high-precision metal-film resistors.\u003c\/p\u003e\n\u003cp\u003e100% Analog Signal Path\u003c\/p\u003e\n\u003cp\u003eThe LA4 is 100% analog. It is designed to be driven from external D\/A converters and external line-level analog sources. The LA4 is designed to drive any professional or hi-fi power amplifier. The LA4 provides the ultimate analog signal path between inputs and outputs. The LA4 eclipses the performance of typical high-end hi-fi preamplifiers by achieving much lower noise and distortion.\nSystem Optimization\u003c\/p\u003e\n\u003cp\u003eAt any volume setting, the relay-controlled gain stage provides an optimized attenuator to match the upstream analog source to the downstream power amplifier. This optimization of the gain staging delivers the best possible system SNR for each volume setting. The LA4 will match high-output D\/A converters to low-input power amplifiers and vice-versa. It will also provide an optimized interface to and from balanced and unbalanced devices. In addition, it will match high-level professional balanced interfaces to low-level hi-fi balanced interfaces (in either direction).\nSpeed and Precision\u003c\/p\u003e\n\u003cp\u003eThe bandwidth of the LA4 extends from 0.01 Hz to over 500 kHz. This means that the LA4 delivers very precise amplitude and phase accuracy over the entire audio bandwidth. Wave shapes are accurately reproduced, and the entire spectrum is delivered with precise timing. The LA4 will deliver musical overtones with life-like accuracy. This means that musical instruments are rendered without changing their sonic character.\nBalanced and Unbalanced I\/O\u003c\/p\u003e\n\u003cp\u003eThe LA4 features two balanced stereo inputs and two unbalanced stereo inputs. The line amplifier provides one balanced stereo output, one balanced mono sum, and one unbalanced stereo output.\nSystem Integration\u003c\/p\u003e\n\u003cp\u003eThe LA4 includes IR remote control and can be operated using the optional Benchmark remote. The LA4 is designed to work with the Benchmark DAC2 and DAC3 converters but may be driven from any high-end D\/A converter. When paired with a Benchmark DAC, a single remote control will operate both units.\u003c\/p\u003e\n\u003cp\u003eThe LA4 (line amplifier) or HPA4 (line amplifier + headphone amplifier) are the perfect complement to the Benchmark AHB2. These may be the only preamplifiers or line amplifiers that exceeds the signal to noise ratio of the ultra-quiet AHB2. This means that the LA4 will extract the full performance of the AHB2. In contrast, other preamplifiers limit the system noise performance because they cannot match the SNR performance of the AHB2. The LA4 and HPA4 are the only line amplifier\/preamplifiers that we recommend inserting between a DAC and the AHB2. The LA4 or HPA4 can be inserted between a Benchmark DAC3 and AHB2 without degrading the system noise performance. With the LA4 or HPA4 inserted, the DAC3's 32-bit digital gain control is replaced by a more-resolving fully-analog relay gain control.\u003c\/p\u003e\n\u003cp\u003eTwo bidirectional 12V trigger ports can be used to link the LA4 with external D\/A converters and power amplifiers. The trigger signal controls the power-up and power-down sequencing of the entire audio system. The trigger ports are compatible with most industry-standard trigger input or output ports, but can communicate bidirectionally with other Benchmark products.\nTouch Screen\u003c\/p\u003e\n\u003cp\u003eThe touch screen provides easy access to advanced features such as balance control, input level offsets, input names, screen dimming, remote control, and function locking. Help screens explain the special functions.\u003c\/p\u003e\n\u003cp\u003eRotary Encoder\u003c\/p\u003e\n\u003cp\u003eThe volume control knob features a high-quality optical encoder that is rated for heavy use. An acceleration feature makes it easy to move through the 256 volume steps while maintaining 0.5 dB\/step resolution. A press of the control knob will wake turn on or brighten the screen if you are using the screen sleep or auto-dim functions.\nConvenience Features\u003c\/p\u003e\n\u003cp\u003eThe LA4 includes an on-screen mute button for the line outputs. Outputs can also be muted with the volume knob or with the optional remote control.\u003c\/p\u003e\n\u003cp\u003eThe LA4 includes an on-screen -20 dB \"audio dim\" button that instantly reduces the level by 20 dB. This function provides a temporary volume reduction and makes it easy return to the previous listening level. This control makes it easy to transition between a normal listening level and a background level. The -20 dB \"dim\" function is also accessible from the optional remote control.\u003c\/p\u003e\n\u003cp\u003eInputs may be renamed and unused inputs may be disabled. Input levels can be trimmed to provide input-to-input level matching.\u003c\/p\u003e\n\u003cp\u003eScreen brightness is adjustable and timers can be set to dim or shut off the display. The screen can be locked to prevent access to advanced features.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466961355071,"sku":"15062","price":4395.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15062_full.jpg?v=1759915288"},{"product_id":"ahb2-black","title":"AHB2 (Black)","description":"\u003cp\u003e\u003cb\u003eTrue High-Resolution Performance\u003c\/b\u003e\nThe AHB2 is the ideal match to the performance limits of High-Resolution-Audio (HRA) formats. Benchmark's AHB2 power amplifier delivers musical details without introducing the masking effects of amplifier noise and distortion. The dynamic range of the AHB2 is 132 dB, making it 10 to 30 dB quieter than some of the very best reference-quality power amplifiers.\u003c\/p\u003e\n\u003cp\u003eThe frequency response of the AHB2 extends beyond 200 kHz. With the AHB2, you will discover previously overlooked nuances, dynamics, and detail in your favorite recordings and experience the full potential of the latest high-resolution 24-bit PCM and 1-bit DSD audio formats.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExperience the Emotion\u003c\/b\u003e\nThe musical details and emotion captured on today's finest High-Resolution-Audio recordings can only be fully appreciated when every component in the signal chain is capable of true high-resolution performance. Power amplifiers are a weak link in most audio systems. Most power amplifiers are well matched to the limitations of the CD format, but they fall well short of the capabilities of high-resolution formats. In contrast, the revolutionary AHB2 was specifically designed to deliver true high-resolution performance.\u003c\/p\u003e\n\u003cp\u003eThe AHB2 has a bipolar class-AB output stage that delivers high output current and low noise. The THX-AAA Technology provides accurate cancellation of zero-crossing errors, exceeding the performance of the best class-A amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeed-Forward Error Correction\u003c\/b\u003e\nTraditional class-AB amplifiers generate crossover distortion every time the push-pull output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels.\u003c\/p\u003e\n\u003cp\u003eIn contrast, class-A amplifiers eliminate crossover distortion by keeping all output devices turned on at all times. This eliminates the push-pull crossover region and this eliminates crossover distortion. Unfortunately. this improvement comes at the expense of high power consumption, poor damping, and limited output power.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe AHB2 Outperforms all Traditional Class-AB and Class-A Designs\u003c\/b\u003e\nTraditional class-AB designs attempt to control distortion through the use of feedback. Unfortunately, these feedback systems have a limited ability to reduce the abrupt transients that are caused by output device crossover transitions. Feedback networks attempt to correct errors after they occur. In contrast, feed-forward networks can prevent errors before they occur.\u003c\/p\u003e\n\u003cp\u003eThe THX-AAA  Technology includes an ultra-clean low-power error-correction amplifier that runs in parallel with the high-power main amplifier. The correction amplifier actively drives the output while the main output devices transition between push and pull states. Like a class-A amplifier, the AHB2 shows no signs of crossover distortion. The feed-forward system virtually eliminates the errors that would have been produced by the output devices in the main amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Efficiency - Green Never Sounded so Good!\u003c\/b\u003e\nThe THX-patented feed-forward error correction used in the AHB2 is so effective that biasing of the class-AB bipolar output devices can be reduced to unusually low levels. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. The benefit of low bias current is that very little power is wasted as heat when the amplifier is idle. The AHB2 only draws 12 W when idle, and less than 1\/2 W in standby.\u003c\/p\u003e\n\u003cp\u003eThe feed-forward error correction also allows the use of class-H tracking power supply rails without the usual distortion-performance penalty.  These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The AHB2 rivals the efficiency of class-D amplifiers while exceeding the sonic performance of power-hungry class-A designs. Green never sounded so good!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInnovative Low-Noise Power Supply\u003c\/b\u003e\nMost high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. In contrast, the AHB2 uses a tightly regulated resonant switching power supply that includes a very fast control loop. This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors. This active regulation is much more effective than capacitive energy-storage. Consequently, the peak power output of the AHB2 does not vary with line voltage or audio loading. The power supply rails maintain a constant voltage during audio peaks.\u003c\/p\u003e\n\u003cp\u003eThe power supply in the AHB2 switches at frequencies that are well above audible frequencies. This eliminates mechanical hum while significantly reducing the strength of stray magnetic fields. For a given amount of power, magnetic field strength decreases as switching frequency increases. The lower field strengths also provide a significant reduction in size. High-frequency transformers and coils are also much smaller than line-frequency components. This size reduction contributes to the small physical size of the AHB2.\u003c\/p\u003e\n\u003cp\u003eThe switching power supply used in the AHB2 is a zero-voltage switching, resonant power converter. This means that the power devices in the supply switch near zero voltage and zero current, eliminating the large switching transients produced by conventional switching power supplies. The power supply in the AHB2 is actually much cleaner and quieter than a conventional linear supply.\u003c\/p\u003e\n\u003cp\u003eThe power supply In the AHB2 is well over 90% efficient, much more efficient than linear supplies. This means that little power is lost to heat.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePassive Cooling\u003c\/b\u003e\nThe power-efficient AHB2 uses passive heat sinks to maintain cool operation. The AHB2 delivers high power without the need for fans. The unit runs cool, even when playing audio at full output levels. The absence of fan noise is absolutely essential in a high-resolution listening environment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow-Noise Input Amplifiers\u003c\/b\u003e\nThe precision balanced inputs on the AHB2 are equipped with low-noise input amplifiers. Benchmark considers balanced inputs essential in a true high-resolution system. If balanced sources are not available, Benchmark sells unbalanced to balanced adapter cables that extend a 3-wire balanced connection back to the unbalanced source connectors. These adapter cables provide many of the advantages of fully balanced interconnects while providing full compatibility with all unbalanced sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow Gain for Low System Noise\u003c\/b\u003e\nThe AHB2 is a low-gain design. Maximum output is not reached until the balanced inputs reach +22 dBu. This is a much higher signal level than is used at the input of most power amplifiers. High interface signal levels are required to achieve the best possible system signal to noise ratio (SNR). Most power amplifiers have far too much gain and consequently they suffer from poor noise performance. The AHB2 is 10 dB to 30 dB quieter than some of the very best power amplifiers on the market. A rear-panel gain switch can be used to set the AHB2 at higher gain settings if necessary. The low-gain setting is designed to interface directly with Benchmark DAC2 converters and other professional audio products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpeakON Output Connectors\u003c\/b\u003e\nThe AHB2 is equipped with high-quality binding posts, and SpeakON output connectors. The high-current SpeakON connectors are designed for heavy-duty commercial sound systems and provide much better electrical connections than binding posts. Benchmark highly recommends the use of the twist-lock SpeakON output connectors. We highly recommend the use of our top-quality professional-grade speaker cables.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA.H.B.\u003c\/b\u003e\nThe letters A, H, and B allude to the unique topology of the amplifier's output stage. The AHB2 combines class-AB, and class-H topologies using a feed-forward error correction system.\u003c\/p\u003e\n\u003cp\u003eBut there is much more to the story -\u003c\/p\u003e\n\u003cp\u003eThe initials A.H.B. can be found on many of the circuit diagrams of Benchmark's early products dating back as far as 1983. These are the initials of Benchmark's founder, Allen H. Burdick. He personally designed many of Benchmark's early products.\u003c\/p\u003e\n\u003cp\u003eAllen had a life-long passion for audio, and he became one of the leading innovators in the pro-audio industry. The AHB2 is named in his memory.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA New Benchmark\u003c\/b\u003e\nExperience high resolution audio as you have never heard it before. The AHB2 is a ground-breaking product. Benchmark has leveraged patented technology from THX to create an amplifier that defines a whole new level of performance. No audio amplifier delivers lower noise or lower distortion.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe All-Important First Watt\u003c\/b\u003e\nIn a normal listening environment, a comfortable listening level is usually reached with only a few watts of audio power. With high-efficiency speakers, most of the audio may be delivered at less than one watt. In either case, the 1st few watts of power are some of the most important to the listening experience. Unfortunately, most amplifiers perform poorly in this low-power region. This is the region where the non-musical distortion caused by conventional class-AB push-pull output stages can rise to a high percentage of the audio level. Likewise, the dead-band distortion in a class-D amplifier can be problematic at these low output levels. The AHB2 does not have either of these problems. It behaves like a class-A amplifier in the low-power region. The AHB2 is virtually distortion-free in the critical first few watts.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eClean to the Last Watt\u003c\/b\u003e\nClass-A amplifiers often perform poorly at high power levels. Likewise, class-D amplifiers often have slew-rate related distortion problems that show up at higher power levels. Class-AB amplifiers tend to do well at high levels, but usually show a gradual increase in distortion energy as the output increases. In contrast to these conventional designs, the AHB2 remains virtually distortion free to the last watt.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExtended Frequency Response\u003c\/b\u003e\nThe frequency response of the AHB2 extends beyond 200 kHz, to deliver the ultrasonic detail and fast transients captured by high-resolution recordings. At the other end of the audio spectrum, the low-frequency response extends below 0.1 Hz, for solid well-controlled bass.\u003c\/p\u003e\n\u003cp\u003eThe extended frequency response delivers a nearly perfect impulse response, and a nearly perfect phase response, over the entire audio spectrum.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe AHB2 Eliminates the Weak Link\u003c\/b\u003e\nOther than loudspeakers, power amplifiers are usually the weakest link in the audio chain. Until now, high-resolution recording formats and converter technology have rapidly outpaced the development of audio power amplifiers. For example, Benchmark DAC2 D\/A converters outperform most high-end power amplifiers by very significant margins.\u003c\/p\u003e\n\u003cp\u003eMost power amplifiers limit system noise performance to the equivalent of a 16 to 18-bit digital system. The differences between 16-bit and 24-bit recordings cannot be experienced if the power amplifier can only deliver 16-bit noise performance. In most audio systems, the details captured by today's high-resolution 24-bit PCM systems are completely lost in a veil of amplifier noise and distortion.\u003c\/p\u003e\n\u003cp\u003eBenchmark set out to build an amplifier that would deliver the full performance of their flagship 24-bit 192-kHz D\/A converters. The AHB2 realizes this goal, and it is the first power amplifier that meets or exceeds the performance of the DAC2 D\/A converter.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDifficult Speaker Loads are Handled With Ease\u003c\/b\u003e\nMany loudspeakers have frequencies at which their impedance drops to levels that are much lower than the \"nominal\" impedance. The AHB2 drives these low impedance regions with ease. Loads as low as 2.2 Ohms can be cleanly driven to full output levels. Most power amplifiers produce higher levels of distortion when the load impedance decreases. In contrast, the feed-forward error correction system in the AHB2 prevents any increase in distortion. The AHB2 produces almost no measurable distortion at any rated load condition.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Damping Factor\u003c\/b\u003e\nThe AHB2 has a high damping factor that augments its extended low-end to deliver solid, well-controlled bass. This high damping factor also keeps the frequency response absolutely flat while driving speakers with large frequency-dependent impedance variations.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Output Current\u003c\/b\u003e\nThe AHB2 can deliver up to 18 A to each channel simultaneously. This robust drive current easily handles some of the most demanding loudspeakers. The AHB2 stays clean while delivering high current.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDistortion is Below Audibility\u003c\/b\u003e\nThe AHB2 will never produce audible distortion, In most playback systems, the distortion produced by the AHB2 will never even reach the 0 dB SPL threshold of hearing. This means that the distortion could not be heard, even if it could be played while the music was muted.\u003c\/p\u003e\n\u003cp\u003eThe AHB2 allows you to escape the distortion limitations of classic amplifier topologies and enter the world of high-resolution audio playback.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBipolar Class-AB Output Stage\u003c\/b\u003e\nThe AHB2 has a bipolar class-AB output stage that delivers high output current and low noise. The THX-AAA Technology provides accurate cancellation of zero-crossing errors, exceeding the performance of the best class-A amplifier.\nFeed-Forward Error Correction\u003c\/p\u003e\n\u003cp\u003eTraditional class-AB amplifiers generate crossover distortion every time the push-pull output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels.\u003c\/p\u003e\n\u003cp\u003eIn contrast, class-A amplifiers eliminate crossover distortion by keeping all output devices turned on at all times. This eliminates the push-pull crossover region and this eliminates crossover distortion. Unfortunately. this improvement comes at the expense of high power consumption, poor damping, and limited output power.\nThe AHB2 Outperforms all Traditional Class-AB and Class-A Designs\u003c\/p\u003e\n\u003cp\u003eTraditional class-AB designs attempt to control distortion through the use of feedback. Unfortunately, these feedback systems have a limited ability to reduce the abrupt transients that are caused by output device crossover transitions. Feedback networks attempt to correct errors after they occur. In contrast, feed-forward networks can prevent errors before they occur.\u003c\/p\u003e\n\u003cp\u003eThe THX-AAA  Technology includes an ultra-clean low-power error-correction amplifier that runs in parallel with the high-power main amplifier. The correction amplifier actively drives the output while the main output devices transition between push and pull states. Like a class-A amplifier, the AHB2 shows no signs of crossover distortion. The feed-forward system virtually eliminates the errors that would have been produced by the output devices in the main amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Efficiency - Green Never Sounded so Good!\u003c\/b\u003e\nThe THX-patented feed-forward error correction used in the AHB2 is so effective that biasing of the class-AB bipolar output devices can be reduced to unusually low levels. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. The benefit of low bias current is that very little power is wasted as heat when the amplifier is idle. The AHB2 only draws 12 W when idle, and less than 1\/2 W in standby.\u003c\/p\u003e\n\u003cp\u003eThe feed-forward error correction also allows the use of class-H tracking power supply rails without the usual distortion-performance penalty.  These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The AHB2 rivals the efficiency of class-D amplifiers while exceeding the sonic performance of power-hungry class-A designs. Green never sounded so good!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInnovative Low-Noise Power Supply\u003c\/b\u003e\nMost high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. In contrast, the AHB2 uses a tightly regulated resonant switching power supply that includes a very fast control loop. This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors. This active regulation is much more effective than capacitive energy-storage. Consequently, the peak power output of the AHB2 does not vary with line voltage or audio loading. The power supply rails maintain a constant voltage during audio peaks.\u003c\/p\u003e\n\u003cp\u003eThe power supply in the AHB2 switches at frequencies that are well above audible frequencies. This eliminates mechanical hum while significantly reducing the strength of stray magnetic fields. For a given amount of power, magnetic field strength decreases as switching frequency increases. The lower field strengths also provide a significant reduction in size. High-frequency transformers and coils are also much smaller than line-frequency components. This size reduction contributes to the small physical size of the AHB2.\u003c\/p\u003e\n\u003cp\u003eThe switching power supply used in the AHB2 is a zero-voltage switching, resonant power converter. This means that the power devices in the supply switch near zero voltage and zero current, eliminating the large switching transients produced by conventional switching power supplies. The power supply in the AHB2 is actually much cleaner and quieter than a conventional linear supply.\u003c\/p\u003e\n\u003cp\u003eThe power supply In the AHB2 is well over 90% efficient, much more efficient than linear supplies. This means that little power is lost to heat.\nPassive Cooling\u003c\/p\u003e\n\u003cp\u003eThe power-efficient AHB2 uses passive heat sinks to maintain cool operation. The AHB2 delivers high power without the need for fans. The unit runs cool, even when playing audio at full output levels. The absence of fan noise is absolutely essential in a high-resolution listening environment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow-Noise Input Amplifiers\u003c\/b\u003e\nThe precision balanced inputs on the AHB2 are equipped with low-noise input amplifiers. Benchmark considers balanced inputs essential in a true high-resolution system. If balanced sources are not available, Benchmark sells unbalanced to balanced adapter cables that extend a 3-wire balanced connection back to the unbalanced source connectors. These adapter cables provide many of the advantages of fully balanced interconnects while providing full compatibility with all unbalanced sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow Gain for Low System Noise\u003c\/b\u003e\nThe AHB2 is a low-gain design. Maximum output is not reached until the balanced inputs reach +22 dBu. This is a much higher signal level than is used at the input of most power amplifiers. High interface signal levels are required to achieve the best possible system signal to noise ratio (SNR). Most power amplifiers have far too much gain and consequently they suffer from poor noise performance. The AHB2 is 10 dB to 30 dB quieter than some of the very best power amplifiers on the market. A rear-panel gain switch can be used to set the AHB2 at higher gain settings if necessary. The low-gain setting is designed to interface directly with Benchmark DAC2 converters and other professional audio products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpeakON Output Connectors\u003c\/b\u003e\nThe AHB2 is equipped with high-quality binding posts, and SpeakON output connectors. The high-current SpeakON connectors are designed for heavy-duty commercial sound systems and provide much better electrical connections than binding posts. Benchmark highly recommends the use of the twist-lock SpeakON output connectors. We highly recommend the use of our top-quality professional-grade speaker cables.\nA.H.B.\u003c\/p\u003e\n\u003cp\u003eThe letters A, H, and B allude to the unique topology of the amplifier's output stage. The AHB2 combines class-AB, and class-H topologies using a feed-forward error correction system.\u003c\/p\u003e\n\u003cp\u003eBut there is much more to the story -\u003c\/p\u003e\n\u003cp\u003eThe initials A.H.B. can be found on many of the circuit diagrams of Benchmark's early products dating back as far as 1983. These are the initials of Benchmark's founder, Allen H. Burdick. He personally designed many of Benchmark's early products.\u003c\/p\u003e\n\u003cp\u003eAllen had a life-long passion for audio, and he became one of the leading innovators in the pro-audio industry. The AHB2 is named in his memory.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466986324287,"sku":"15344","price":5745.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15344_full.jpg?v=1759917386"},{"product_id":"ahb2-rack-mount-black","title":"AHB2 Rack Mount (Black)","description":"\u003cp\u003e\u003cb\u003eTrue High-Resolution Performance\u003c\/b\u003e\nThe AHB2 is the ideal match to the performance limits of High-Resolution-Audio (HRA) formats. Benchmark's AHB2 power amplifier delivers musical details without introducing the masking effects of amplifier noise and distortion. The dynamic range of the AHB2 is 132 dB, making it 10 to 30 dB quieter than some of the very best reference-quality power amplifiers.\u003c\/p\u003e\n\u003cp\u003eThe frequency response of the AHB2 extends beyond 200 kHz. With the AHB2, you will discover previously overlooked nuances, dynamics, and detail in your favorite recordings and experience the full potential of the latest high-resolution 24-bit PCM and 1-bit DSD audio formats.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExperience the Emotion\u003c\/b\u003e\nThe musical details and emotion captured on today's finest High-Resolution-Audio recordings can only be fully appreciated when every component in the signal chain is capable of true high-resolution performance. Power amplifiers are a weak link in most audio systems. Most power amplifiers are well matched to the limitations of the CD format, but they fall well short of the capabilities of high-resolution formats. In contrast, the revolutionary AHB2 was specifically designed to deliver true high-resolution performance.\u003c\/p\u003e\n\u003cp\u003eThe AHB2 has a bipolar class-AB output stage that delivers high output current and low noise. The THX-AAA Technology provides accurate cancellation of zero-crossing errors, exceeding the performance of the best class-A amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeed-Forward Error Correction\u003c\/b\u003e\nTraditional class-AB amplifiers generate crossover distortion every time the push-pull output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels.\u003c\/p\u003e\n\u003cp\u003eIn contrast, class-A amplifiers eliminate crossover distortion by keeping all output devices turned on at all times. This eliminates the push-pull crossover region and this eliminates crossover distortion. Unfortunately. this improvement comes at the expense of high power consumption, poor damping, and limited output power.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe AHB2 Outperforms all Traditional Class-AB and Class-A Designs\u003c\/b\u003e\nTraditional class-AB designs attempt to control distortion through the use of feedback. Unfortunately, these feedback systems have a limited ability to reduce the abrupt transients that are caused by output device crossover transitions. Feedback networks attempt to correct errors after they occur. In contrast, feed-forward networks can prevent errors before they occur.\u003c\/p\u003e\n\u003cp\u003eThe THX-AAA  Technology includes an ultra-clean low-power error-correction amplifier that runs in parallel with the high-power main amplifier. The correction amplifier actively drives the output while the main output devices transition between push and pull states. Like a class-A amplifier, the AHB2 shows no signs of crossover distortion. The feed-forward system virtually eliminates the errors that would have been produced by the output devices in the main amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Efficiency - Green Never Sounded so Good!\u003c\/b\u003e\nThe THX-patented feed-forward error correction used in the AHB2 is so effective that biasing of the class-AB bipolar output devices can be reduced to unusually low levels. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. The benefit of low bias current is that very little power is wasted as heat when the amplifier is idle. The AHB2 only draws 12 W when idle, and less than 1\/2 W in standby.\u003c\/p\u003e\n\u003cp\u003eThe feed-forward error correction also allows the use of class-H tracking power supply rails without the usual distortion-performance penalty.  These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The AHB2 rivals the efficiency of class-D amplifiers while exceeding the sonic performance of power-hungry class-A designs. Green never sounded so good!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInnovative Low-Noise Power Supply\u003c\/b\u003e\nMost high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. In contrast, the AHB2 uses a tightly regulated resonant switching power supply that includes a very fast control loop. This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors. This active regulation is much more effective than capacitive energy-storage. Consequently, the peak power output of the AHB2 does not vary with line voltage or audio loading. The power supply rails maintain a constant voltage during audio peaks.\u003c\/p\u003e\n\u003cp\u003eThe power supply in the AHB2 switches at frequencies that are well above audible frequencies. This eliminates mechanical hum while significantly reducing the strength of stray magnetic fields. For a given amount of power, magnetic field strength decreases as switching frequency increases. The lower field strengths also provide a significant reduction in size. High-frequency transformers and coils are also much smaller than line-frequency components. This size reduction contributes to the small physical size of the AHB2.\u003c\/p\u003e\n\u003cp\u003eThe switching power supply used in the AHB2 is a zero-voltage switching, resonant power converter. This means that the power devices in the supply switch near zero voltage and zero current, eliminating the large switching transients produced by conventional switching power supplies. The power supply in the AHB2 is actually much cleaner and quieter than a conventional linear supply.\u003c\/p\u003e\n\u003cp\u003eThe power supply In the AHB2 is well over 90% efficient, much more efficient than linear supplies. This means that little power is lost to heat.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePassive Cooling\u003c\/b\u003e\nThe power-efficient AHB2 uses passive heat sinks to maintain cool operation. The AHB2 delivers high power without the need for fans. The unit runs cool, even when playing audio at full output levels. The absence of fan noise is absolutely essential in a high-resolution listening environment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow-Noise Input Amplifiers\u003c\/b\u003e\nThe precision balanced inputs on the AHB2 are equipped with low-noise input amplifiers. Benchmark considers balanced inputs essential in a true high-resolution system. If balanced sources are not available, Benchmark sells unbalanced to balanced adapter cables that extend a 3-wire balanced connection back to the unbalanced source connectors. These adapter cables provide many of the advantages of fully balanced interconnects while providing full compatibility with all unbalanced sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow Gain for Low System Noise\u003c\/b\u003e\nThe AHB2 is a low-gain design. Maximum output is not reached until the balanced inputs reach +22 dBu. This is a much higher signal level than is used at the input of most power amplifiers. High interface signal levels are required to achieve the best possible system signal to noise ratio (SNR). Most power amplifiers have far too much gain and consequently they suffer from poor noise performance. The AHB2 is 10 dB to 30 dB quieter than some of the very best power amplifiers on the market. A rear-panel gain switch can be used to set the AHB2 at higher gain settings if necessary. The low-gain setting is designed to interface directly with Benchmark DAC2 converters and other professional audio products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpeakON Output Connectors\u003c\/b\u003e\nThe AHB2 is equipped with high-quality binding posts, and SpeakON output connectors. The high-current SpeakON connectors are designed for heavy-duty commercial sound systems and provide much better electrical connections than binding posts. Benchmark highly recommends the use of the twist-lock SpeakON output connectors. We highly recommend the use of our top-quality professional-grade speaker cables.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA.H.B.\u003c\/b\u003e\nThe letters A, H, and B allude to the unique topology of the amplifier's output stage. The AHB2 combines class-AB, and class-H topologies using a feed-forward error correction system.\u003c\/p\u003e\n\u003cp\u003eBut there is much more to the story -\u003c\/p\u003e\n\u003cp\u003eThe initials A.H.B. can be found on many of the circuit diagrams of Benchmark's early products dating back as far as 1983. These are the initials of Benchmark's founder, Allen H. Burdick. He personally designed many of Benchmark's early products.\u003c\/p\u003e\n\u003cp\u003eAllen had a life-long passion for audio, and he became one of the leading innovators in the pro-audio industry. The AHB2 is named in his memory.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA New Benchmark\u003c\/b\u003e\nExperience high resolution audio as you have never heard it before. The AHB2 is a ground-breaking product. Benchmark has leveraged patented technology from THX to create an amplifier that defines a whole new level of performance. No audio amplifier delivers lower noise or lower distortion.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe All-Important First Watt\u003c\/b\u003e\nIn a normal listening environment, a comfortable listening level is usually reached with only a few watts of audio power. With high-efficiency speakers, most of the audio may be delivered at less than one watt. In either case, the 1st few watts of power are some of the most important to the listening experience. Unfortunately, most amplifiers perform poorly in this low-power region. This is the region where the non-musical distortion caused by conventional class-AB push-pull output stages can rise to a high percentage of the audio level. Likewise, the dead-band distortion in a class-D amplifier can be problematic at these low output levels. The AHB2 does not have either of these problems. It behaves like a class-A amplifier in the low-power region. The AHB2 is virtually distortion-free in the critical first few watts.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eClean to the Last Watt\u003c\/b\u003e\nClass-A amplifiers often perform poorly at high power levels. Likewise, class-D amplifiers often have slew-rate related distortion problems that show up at higher power levels. Class-AB amplifiers tend to do well at high levels, but usually show a gradual increase in distortion energy as the output increases. In contrast to these conventional designs, the AHB2 remains virtually distortion free to the last watt.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExtended Frequency Response\u003c\/b\u003e\nThe frequency response of the AHB2 extends beyond 200 kHz, to deliver the ultrasonic detail and fast transients captured by high-resolution recordings. At the other end of the audio spectrum, the low-frequency response extends below 0.1 Hz, for solid well-controlled bass.\u003c\/p\u003e\n\u003cp\u003eThe extended frequency response delivers a nearly perfect impulse response, and a nearly perfect phase response, over the entire audio spectrum.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe AHB2 Eliminates the Weak Link\u003c\/b\u003e\nOther than loudspeakers, power amplifiers are usually the weakest link in the audio chain. Until now, high-resolution recording formats and converter technology have rapidly outpaced the development of audio power amplifiers. For example, Benchmark DAC2 D\/A converters outperform most high-end power amplifiers by very significant margins.\u003c\/p\u003e\n\u003cp\u003eMost power amplifiers limit system noise performance to the equivalent of a 16 to 18-bit digital system. The differences between 16-bit and 24-bit recordings cannot be experienced if the power amplifier can only deliver 16-bit noise performance. In most audio systems, the details captured by today's high-resolution 24-bit PCM systems are completely lost in a veil of amplifier noise and distortion.\u003c\/p\u003e\n\u003cp\u003eBenchmark set out to build an amplifier that would deliver the full performance of their flagship 24-bit 192-kHz D\/A converters. The AHB2 realizes this goal, and it is the first power amplifier that meets or exceeds the performance of the DAC2 D\/A converter.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDifficult Speaker Loads are Handled With Ease\u003c\/b\u003e\nMany loudspeakers have frequencies at which their impedance drops to levels that are much lower than the \"nominal\" impedance. The AHB2 drives these low impedance regions with ease. Loads as low as 2.2 Ohms can be cleanly driven to full output levels. Most power amplifiers produce higher levels of distortion when the load impedance decreases. In contrast, the feed-forward error correction system in the AHB2 prevents any increase in distortion. The AHB2 produces almost no measurable distortion at any rated load condition.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Damping Factor\u003c\/b\u003e\nThe AHB2 has a high damping factor that augments its extended low-end to deliver solid, well-controlled bass. This high damping factor also keeps the frequency response absolutely flat while driving speakers with large frequency-dependent impedance variations.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Output Current\u003c\/b\u003e\nThe AHB2 can deliver up to 18 A to each channel simultaneously. This robust drive current easily handles some of the most demanding loudspeakers. The AHB2 stays clean while delivering high current.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDistortion is Below Audibility\u003c\/b\u003e\nThe AHB2 will never produce audible distortion, In most playback systems, the distortion produced by the AHB2 will never even reach the 0 dB SPL threshold of hearing. This means that the distortion could not be heard, even if it could be played while the music was muted.\u003c\/p\u003e\n\u003cp\u003eThe AHB2 allows you to escape the distortion limitations of classic amplifier topologies and enter the world of high-resolution audio playback.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBipolar Class-AB Output Stage\u003c\/b\u003e\nThe AHB2 has a bipolar class-AB output stage that delivers high output current and low noise. The THX-AAA Technology provides accurate cancellation of zero-crossing errors, exceeding the performance of the best class-A amplifier.\nFeed-Forward Error Correction\u003c\/p\u003e\n\u003cp\u003eTraditional class-AB amplifiers generate crossover distortion every time the push-pull output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels.\u003c\/p\u003e\n\u003cp\u003eIn contrast, class-A amplifiers eliminate crossover distortion by keeping all output devices turned on at all times. This eliminates the push-pull crossover region and this eliminates crossover distortion. Unfortunately. this improvement comes at the expense of high power consumption, poor damping, and limited output power.\nThe AHB2 Outperforms all Traditional Class-AB and Class-A Designs\u003c\/p\u003e\n\u003cp\u003eTraditional class-AB designs attempt to control distortion through the use of feedback. Unfortunately, these feedback systems have a limited ability to reduce the abrupt transients that are caused by output device crossover transitions. Feedback networks attempt to correct errors after they occur. In contrast, feed-forward networks can prevent errors before they occur.\u003c\/p\u003e\n\u003cp\u003eThe THX-AAA  Technology includes an ultra-clean low-power error-correction amplifier that runs in parallel with the high-power main amplifier. The correction amplifier actively drives the output while the main output devices transition between push and pull states. Like a class-A amplifier, the AHB2 shows no signs of crossover distortion. The feed-forward system virtually eliminates the errors that would have been produced by the output devices in the main amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Efficiency - Green Never Sounded so Good!\u003c\/b\u003e\nThe THX-patented feed-forward error correction used in the AHB2 is so effective that biasing of the class-AB bipolar output devices can be reduced to unusually low levels. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. The benefit of low bias current is that very little power is wasted as heat when the amplifier is idle. The AHB2 only draws 12 W when idle, and less than 1\/2 W in standby.\u003c\/p\u003e\n\u003cp\u003eThe feed-forward error correction also allows the use of class-H tracking power supply rails without the usual distortion-performance penalty.  These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The AHB2 rivals the efficiency of class-D amplifiers while exceeding the sonic performance of power-hungry class-A designs. Green never sounded so good!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInnovative Low-Noise Power Supply\u003c\/b\u003e\nMost high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. In contrast, the AHB2 uses a tightly regulated resonant switching power supply that includes a very fast control loop. This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors. This active regulation is much more effective than capacitive energy-storage. Consequently, the peak power output of the AHB2 does not vary with line voltage or audio loading. The power supply rails maintain a constant voltage during audio peaks.\u003c\/p\u003e\n\u003cp\u003eThe power supply in the AHB2 switches at frequencies that are well above audible frequencies. This eliminates mechanical hum while significantly reducing the strength of stray magnetic fields. For a given amount of power, magnetic field strength decreases as switching frequency increases. The lower field strengths also provide a significant reduction in size. High-frequency transformers and coils are also much smaller than line-frequency components. This size reduction contributes to the small physical size of the AHB2.\u003c\/p\u003e\n\u003cp\u003eThe switching power supply used in the AHB2 is a zero-voltage switching, resonant power converter. This means that the power devices in the supply switch near zero voltage and zero current, eliminating the large switching transients produced by conventional switching power supplies. The power supply in the AHB2 is actually much cleaner and quieter than a conventional linear supply.\u003c\/p\u003e\n\u003cp\u003eThe power supply In the AHB2 is well over 90% efficient, much more efficient than linear supplies. This means that little power is lost to heat.\nPassive Cooling\u003c\/p\u003e\n\u003cp\u003eThe power-efficient AHB2 uses passive heat sinks to maintain cool operation. The AHB2 delivers high power without the need for fans. The unit runs cool, even when playing audio at full output levels. The absence of fan noise is absolutely essential in a high-resolution listening environment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow-Noise Input Amplifiers\u003c\/b\u003e\nThe precision balanced inputs on the AHB2 are equipped with low-noise input amplifiers. Benchmark considers balanced inputs essential in a true high-resolution system. If balanced sources are not available, Benchmark sells unbalanced to balanced adapter cables that extend a 3-wire balanced connection back to the unbalanced source connectors. These adapter cables provide many of the advantages of fully balanced interconnects while providing full compatibility with all unbalanced sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow Gain for Low System Noise\u003c\/b\u003e\nThe AHB2 is a low-gain design. Maximum output is not reached until the balanced inputs reach +22 dBu. This is a much higher signal level than is used at the input of most power amplifiers. High interface signal levels are required to achieve the best possible system signal to noise ratio (SNR). Most power amplifiers have far too much gain and consequently they suffer from poor noise performance. The AHB2 is 10 dB to 30 dB quieter than some of the very best power amplifiers on the market. A rear-panel gain switch can be used to set the AHB2 at higher gain settings if necessary. The low-gain setting is designed to interface directly with Benchmark DAC2 converters and other professional audio products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpeakON Output Connectors\u003c\/b\u003e\nThe AHB2 is equipped with high-quality binding posts, and SpeakON output connectors. The high-current SpeakON connectors are designed for heavy-duty commercial sound systems and provide much better electrical connections than binding posts. Benchmark highly recommends the use of the twist-lock SpeakON output connectors. We highly recommend the use of our top-quality professional-grade speaker cables.\nA.H.B.\u003c\/p\u003e\n\u003cp\u003eThe letters A, H, and B allude to the unique topology of the amplifier's output stage. The AHB2 combines class-AB, and class-H topologies using a feed-forward error correction system.\u003c\/p\u003e\n\u003cp\u003eBut there is much more to the story -\u003c\/p\u003e\n\u003cp\u003eThe initials A.H.B. can be found on many of the circuit diagrams of Benchmark's early products dating back as far as 1983. These are the initials of Benchmark's founder, Allen H. Burdick. He personally designed many of Benchmark's early products.\u003c\/p\u003e\n\u003cp\u003eAllen had a life-long passion for audio, and he became one of the leading innovators in the pro-audio industry. The AHB2 is named in his memory.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466986389823,"sku":"15345","price":5869.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15345_full.jpg?v=1759917395"},{"product_id":"ahb2-rack-mount-silver","title":"AHB2 Rack Mount (Silver)","description":"\u003cp\u003e\u003cb\u003eTrue High-Resolution Performance\u003c\/b\u003e\nThe AHB2 is the ideal match to the performance limits of High-Resolution-Audio (HRA) formats. Benchmark's AHB2 power amplifier delivers musical details without introducing the masking effects of amplifier noise and distortion. The dynamic range of the AHB2 is 132 dB, making it 10 to 30 dB quieter than some of the very best reference-quality power amplifiers.\u003c\/p\u003e\n\u003cp\u003eThe frequency response of the AHB2 extends beyond 200 kHz. With the AHB2, you will discover previously overlooked nuances, dynamics, and detail in your favorite recordings and experience the full potential of the latest high-resolution 24-bit PCM and 1-bit DSD audio formats.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExperience the Emotion\u003c\/b\u003e\nThe musical details and emotion captured on today's finest High-Resolution-Audio recordings can only be fully appreciated when every component in the signal chain is capable of true high-resolution performance. Power amplifiers are a weak link in most audio systems. Most power amplifiers are well matched to the limitations of the CD format, but they fall well short of the capabilities of high-resolution formats. In contrast, the revolutionary AHB2 was specifically designed to deliver true high-resolution performance.\u003c\/p\u003e\n\u003cp\u003eThe AHB2 has a bipolar class-AB output stage that delivers high output current and low noise. The THX-AAA Technology provides accurate cancellation of zero-crossing errors, exceeding the performance of the best class-A amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeed-Forward Error Correction\u003c\/b\u003e\nTraditional class-AB amplifiers generate crossover distortion every time the push-pull output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels.\u003c\/p\u003e\n\u003cp\u003eIn contrast, class-A amplifiers eliminate crossover distortion by keeping all output devices turned on at all times. This eliminates the push-pull crossover region and this eliminates crossover distortion. Unfortunately. this improvement comes at the expense of high power consumption, poor damping, and limited output power.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe AHB2 Outperforms all Traditional Class-AB and Class-A Designs\u003c\/b\u003e\nTraditional class-AB designs attempt to control distortion through the use of feedback. Unfortunately, these feedback systems have a limited ability to reduce the abrupt transients that are caused by output device crossover transitions. Feedback networks attempt to correct errors after they occur. In contrast, feed-forward networks can prevent errors before they occur.\u003c\/p\u003e\n\u003cp\u003eThe THX-AAA  Technology includes an ultra-clean low-power error-correction amplifier that runs in parallel with the high-power main amplifier. The correction amplifier actively drives the output while the main output devices transition between push and pull states. Like a class-A amplifier, the AHB2 shows no signs of crossover distortion. The feed-forward system virtually eliminates the errors that would have been produced by the output devices in the main amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Efficiency - Green Never Sounded so Good!\u003c\/b\u003e\nThe THX-patented feed-forward error correction used in the AHB2 is so effective that biasing of the class-AB bipolar output devices can be reduced to unusually low levels. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. The benefit of low bias current is that very little power is wasted as heat when the amplifier is idle. The AHB2 only draws 12 W when idle, and less than 1\/2 W in standby.\u003c\/p\u003e\n\u003cp\u003eThe feed-forward error correction also allows the use of class-H tracking power supply rails without the usual distortion-performance penalty.  These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The AHB2 rivals the efficiency of class-D amplifiers while exceeding the sonic performance of power-hungry class-A designs. Green never sounded so good!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInnovative Low-Noise Power Supply\u003c\/b\u003e\nMost high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. In contrast, the AHB2 uses a tightly regulated resonant switching power supply that includes a very fast control loop. This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors. This active regulation is much more effective than capacitive energy-storage. Consequently, the peak power output of the AHB2 does not vary with line voltage or audio loading. The power supply rails maintain a constant voltage during audio peaks.\u003c\/p\u003e\n\u003cp\u003eThe power supply in the AHB2 switches at frequencies that are well above audible frequencies. This eliminates mechanical hum while significantly reducing the strength of stray magnetic fields. For a given amount of power, magnetic field strength decreases as switching frequency increases. The lower field strengths also provide a significant reduction in size. High-frequency transformers and coils are also much smaller than line-frequency components. This size reduction contributes to the small physical size of the AHB2.\u003c\/p\u003e\n\u003cp\u003eThe switching power supply used in the AHB2 is a zero-voltage switching, resonant power converter. This means that the power devices in the supply switch near zero voltage and zero current, eliminating the large switching transients produced by conventional switching power supplies. The power supply in the AHB2 is actually much cleaner and quieter than a conventional linear supply.\u003c\/p\u003e\n\u003cp\u003eThe power supply In the AHB2 is well over 90% efficient, much more efficient than linear supplies. This means that little power is lost to heat.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePassive Cooling\u003c\/b\u003e\nThe power-efficient AHB2 uses passive heat sinks to maintain cool operation. The AHB2 delivers high power without the need for fans. The unit runs cool, even when playing audio at full output levels. The absence of fan noise is absolutely essential in a high-resolution listening environment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow-Noise Input Amplifiers\u003c\/b\u003e\nThe precision balanced inputs on the AHB2 are equipped with low-noise input amplifiers. Benchmark considers balanced inputs essential in a true high-resolution system. If balanced sources are not available, Benchmark sells unbalanced to balanced adapter cables that extend a 3-wire balanced connection back to the unbalanced source connectors. These adapter cables provide many of the advantages of fully balanced interconnects while providing full compatibility with all unbalanced sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow Gain for Low System Noise\u003c\/b\u003e\nThe AHB2 is a low-gain design. Maximum output is not reached until the balanced inputs reach +22 dBu. This is a much higher signal level than is used at the input of most power amplifiers. High interface signal levels are required to achieve the best possible system signal to noise ratio (SNR). Most power amplifiers have far too much gain and consequently they suffer from poor noise performance. The AHB2 is 10 dB to 30 dB quieter than some of the very best power amplifiers on the market. A rear-panel gain switch can be used to set the AHB2 at higher gain settings if necessary. The low-gain setting is designed to interface directly with Benchmark DAC2 converters and other professional audio products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpeakON Output Connectors\u003c\/b\u003e\nThe AHB2 is equipped with high-quality binding posts, and SpeakON output connectors. The high-current SpeakON connectors are designed for heavy-duty commercial sound systems and provide much better electrical connections than binding posts. Benchmark highly recommends the use of the twist-lock SpeakON output connectors. We highly recommend the use of our top-quality professional-grade speaker cables.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA.H.B.\u003c\/b\u003e\nThe letters A, H, and B allude to the unique topology of the amplifier's output stage. The AHB2 combines class-AB, and class-H topologies using a feed-forward error correction system.\u003c\/p\u003e\n\u003cp\u003eBut there is much more to the story -\u003c\/p\u003e\n\u003cp\u003eThe initials A.H.B. can be found on many of the circuit diagrams of Benchmark's early products dating back as far as 1983. These are the initials of Benchmark's founder, Allen H. Burdick. He personally designed many of Benchmark's early products.\u003c\/p\u003e\n\u003cp\u003eAllen had a life-long passion for audio, and he became one of the leading innovators in the pro-audio industry. The AHB2 is named in his memory.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA New Benchmark\u003c\/b\u003e\nExperience high resolution audio as you have never heard it before. The AHB2 is a ground-breaking product. Benchmark has leveraged patented technology from THX to create an amplifier that defines a whole new level of performance. No audio amplifier delivers lower noise or lower distortion.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe All-Important First Watt\u003c\/b\u003e\nIn a normal listening environment, a comfortable listening level is usually reached with only a few watts of audio power. With high-efficiency speakers, most of the audio may be delivered at less than one watt. In either case, the 1st few watts of power are some of the most important to the listening experience. Unfortunately, most amplifiers perform poorly in this low-power region. This is the region where the non-musical distortion caused by conventional class-AB push-pull output stages can rise to a high percentage of the audio level. Likewise, the dead-band distortion in a class-D amplifier can be problematic at these low output levels. The AHB2 does not have either of these problems. It behaves like a class-A amplifier in the low-power region. The AHB2 is virtually distortion-free in the critical first few watts.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eClean to the Last Watt\u003c\/b\u003e\nClass-A amplifiers often perform poorly at high power levels. Likewise, class-D amplifiers often have slew-rate related distortion problems that show up at higher power levels. Class-AB amplifiers tend to do well at high levels, but usually show a gradual increase in distortion energy as the output increases. In contrast to these conventional designs, the AHB2 remains virtually distortion free to the last watt.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExtended Frequency Response\u003c\/b\u003e\nThe frequency response of the AHB2 extends beyond 200 kHz, to deliver the ultrasonic detail and fast transients captured by high-resolution recordings. At the other end of the audio spectrum, the low-frequency response extends below 0.1 Hz, for solid well-controlled bass.\u003c\/p\u003e\n\u003cp\u003eThe extended frequency response delivers a nearly perfect impulse response, and a nearly perfect phase response, over the entire audio spectrum.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe AHB2 Eliminates the Weak Link\u003c\/b\u003e\nOther than loudspeakers, power amplifiers are usually the weakest link in the audio chain. Until now, high-resolution recording formats and converter technology have rapidly outpaced the development of audio power amplifiers. For example, Benchmark DAC2 D\/A converters outperform most high-end power amplifiers by very significant margins.\u003c\/p\u003e\n\u003cp\u003eMost power amplifiers limit system noise performance to the equivalent of a 16 to 18-bit digital system. The differences between 16-bit and 24-bit recordings cannot be experienced if the power amplifier can only deliver 16-bit noise performance. In most audio systems, the details captured by today's high-resolution 24-bit PCM systems are completely lost in a veil of amplifier noise and distortion.\u003c\/p\u003e\n\u003cp\u003eBenchmark set out to build an amplifier that would deliver the full performance of their flagship 24-bit 192-kHz D\/A converters. The AHB2 realizes this goal, and it is the first power amplifier that meets or exceeds the performance of the DAC2 D\/A converter.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDifficult Speaker Loads are Handled With Ease\u003c\/b\u003e\nMany loudspeakers have frequencies at which their impedance drops to levels that are much lower than the \"nominal\" impedance. The AHB2 drives these low impedance regions with ease. Loads as low as 2.2 Ohms can be cleanly driven to full output levels. Most power amplifiers produce higher levels of distortion when the load impedance decreases. In contrast, the feed-forward error correction system in the AHB2 prevents any increase in distortion. The AHB2 produces almost no measurable distortion at any rated load condition.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Damping Factor\u003c\/b\u003e\nThe AHB2 has a high damping factor that augments its extended low-end to deliver solid, well-controlled bass. This high damping factor also keeps the frequency response absolutely flat while driving speakers with large frequency-dependent impedance variations.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Output Current\u003c\/b\u003e\nThe AHB2 can deliver up to 18 A to each channel simultaneously. This robust drive current easily handles some of the most demanding loudspeakers. The AHB2 stays clean while delivering high current.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDistortion is Below Audibility\u003c\/b\u003e\nThe AHB2 will never produce audible distortion, In most playback systems, the distortion produced by the AHB2 will never even reach the 0 dB SPL threshold of hearing. This means that the distortion could not be heard, even if it could be played while the music was muted.\u003c\/p\u003e\n\u003cp\u003eThe AHB2 allows you to escape the distortion limitations of classic amplifier topologies and enter the world of high-resolution audio playback.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBipolar Class-AB Output Stage\u003c\/b\u003e\nThe AHB2 has a bipolar class-AB output stage that delivers high output current and low noise. The THX-AAA Technology provides accurate cancellation of zero-crossing errors, exceeding the performance of the best class-A amplifier.\nFeed-Forward Error Correction\u003c\/p\u003e\n\u003cp\u003eTraditional class-AB amplifiers generate crossover distortion every time the push-pull output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels.\u003c\/p\u003e\n\u003cp\u003eIn contrast, class-A amplifiers eliminate crossover distortion by keeping all output devices turned on at all times. This eliminates the push-pull crossover region and this eliminates crossover distortion. Unfortunately. this improvement comes at the expense of high power consumption, poor damping, and limited output power.\nThe AHB2 Outperforms all Traditional Class-AB and Class-A Designs\u003c\/p\u003e\n\u003cp\u003eTraditional class-AB designs attempt to control distortion through the use of feedback. Unfortunately, these feedback systems have a limited ability to reduce the abrupt transients that are caused by output device crossover transitions. Feedback networks attempt to correct errors after they occur. In contrast, feed-forward networks can prevent errors before they occur.\u003c\/p\u003e\n\u003cp\u003eThe THX-AAA  Technology includes an ultra-clean low-power error-correction amplifier that runs in parallel with the high-power main amplifier. The correction amplifier actively drives the output while the main output devices transition between push and pull states. Like a class-A amplifier, the AHB2 shows no signs of crossover distortion. The feed-forward system virtually eliminates the errors that would have been produced by the output devices in the main amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Efficiency - Green Never Sounded so Good!\u003c\/b\u003e\nThe THX-patented feed-forward error correction used in the AHB2 is so effective that biasing of the class-AB bipolar output devices can be reduced to unusually low levels. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. The benefit of low bias current is that very little power is wasted as heat when the amplifier is idle. The AHB2 only draws 12 W when idle, and less than 1\/2 W in standby.\u003c\/p\u003e\n\u003cp\u003eThe feed-forward error correction also allows the use of class-H tracking power supply rails without the usual distortion-performance penalty.  These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The AHB2 rivals the efficiency of class-D amplifiers while exceeding the sonic performance of power-hungry class-A designs. Green never sounded so good!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInnovative Low-Noise Power Supply\u003c\/b\u003e\nMost high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. In contrast, the AHB2 uses a tightly regulated resonant switching power supply that includes a very fast control loop. This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors. This active regulation is much more effective than capacitive energy-storage. Consequently, the peak power output of the AHB2 does not vary with line voltage or audio loading. The power supply rails maintain a constant voltage during audio peaks.\u003c\/p\u003e\n\u003cp\u003eThe power supply in the AHB2 switches at frequencies that are well above audible frequencies. This eliminates mechanical hum while significantly reducing the strength of stray magnetic fields. For a given amount of power, magnetic field strength decreases as switching frequency increases. The lower field strengths also provide a significant reduction in size. High-frequency transformers and coils are also much smaller than line-frequency components. This size reduction contributes to the small physical size of the AHB2.\u003c\/p\u003e\n\u003cp\u003eThe switching power supply used in the AHB2 is a zero-voltage switching, resonant power converter. This means that the power devices in the supply switch near zero voltage and zero current, eliminating the large switching transients produced by conventional switching power supplies. The power supply in the AHB2 is actually much cleaner and quieter than a conventional linear supply.\u003c\/p\u003e\n\u003cp\u003eThe power supply In the AHB2 is well over 90% efficient, much more efficient than linear supplies. This means that little power is lost to heat.\nPassive Cooling\u003c\/p\u003e\n\u003cp\u003eThe power-efficient AHB2 uses passive heat sinks to maintain cool operation. The AHB2 delivers high power without the need for fans. The unit runs cool, even when playing audio at full output levels. The absence of fan noise is absolutely essential in a high-resolution listening environment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow-Noise Input Amplifiers\u003c\/b\u003e\nThe precision balanced inputs on the AHB2 are equipped with low-noise input amplifiers. Benchmark considers balanced inputs essential in a true high-resolution system. If balanced sources are not available, Benchmark sells unbalanced to balanced adapter cables that extend a 3-wire balanced connection back to the unbalanced source connectors. These adapter cables provide many of the advantages of fully balanced interconnects while providing full compatibility with all unbalanced sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow Gain for Low System Noise\u003c\/b\u003e\nThe AHB2 is a low-gain design. Maximum output is not reached until the balanced inputs reach +22 dBu. This is a much higher signal level than is used at the input of most power amplifiers. High interface signal levels are required to achieve the best possible system signal to noise ratio (SNR). Most power amplifiers have far too much gain and consequently they suffer from poor noise performance. The AHB2 is 10 dB to 30 dB quieter than some of the very best power amplifiers on the market. A rear-panel gain switch can be used to set the AHB2 at higher gain settings if necessary. The low-gain setting is designed to interface directly with Benchmark DAC2 converters and other professional audio products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpeakON Output Connectors\u003c\/b\u003e\nThe AHB2 is equipped with high-quality binding posts, and SpeakON output connectors. The high-current SpeakON connectors are designed for heavy-duty commercial sound systems and provide much better electrical connections than binding posts. Benchmark highly recommends the use of the twist-lock SpeakON output connectors. We highly recommend the use of our top-quality professional-grade speaker cables.\nA.H.B.\u003c\/p\u003e\n\u003cp\u003eThe letters A, H, and B allude to the unique topology of the amplifier's output stage. The AHB2 combines class-AB, and class-H topologies using a feed-forward error correction system.\u003c\/p\u003e\n\u003cp\u003eBut there is much more to the story -\u003c\/p\u003e\n\u003cp\u003eThe initials A.H.B. can be found on many of the circuit diagrams of Benchmark's early products dating back as far as 1983. These are the initials of Benchmark's founder, Allen H. Burdick. He personally designed many of Benchmark's early products.\u003c\/p\u003e\n\u003cp\u003eAllen had a life-long passion for audio, and he became one of the leading innovators in the pro-audio industry. The AHB2 is named in his memory.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466986455359,"sku":"15346","price":5869.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15346_full.jpg?v=1759917405"},{"product_id":"dac3-b-rack-mount-black","title":"DAC3 B Rack Mount (Black)","description":"\u003cp\u003eThe DAC3 B is the ideal converter to use in front of Benchmark's HPA4 headphone amplifier or LA4 line amplifier. It is also ideal for many professional studio applications. It delivers the full performance of the flagship DAC3 HGC, but eliminates the volume control, the analog inputs, the mute and polarity controls, and the headphone amplifier.\u003c\/p\u003e\n\u003cp\u003eTo make system integration easy, the DAC3 B retains IR remote control (handset optional), 12 V trigger,  and the programmable auto-on feature. The DAC3 B adds a control-lock feature that turns off the remote control and locks the keypad to prevent tampering and accidental changes. The optional 1\/2-width rack-mount faceplate allows the mounting of two units in a single 1-RU rack space.\u003c\/p\u003e\n\u003cp\u003eThe DAC3 B sounds exactly like the DAC3 HGC because it uses the exact same circuit board and the exact same audio path. Benchmark has simply eliminated the unnecessary parts to deliver a stripped down race car of a converter. If you want a basic D\/A converter that delivers the finest conversion available, the DAC3 B is for you.\u003c\/p\u003e\n\u003cp\u003eThe DAC3 B  is a 2-channel D\/A converter featuring the new ESS Technologies ES9028PRO converter chip. The DAC3 converter has lower THD and THD+N noise than Benchmark's DAC2 converters.\u003c\/p\u003e\n\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReference Performance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466986520895,"sku":"15347","price":2695.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15347_full.jpg?v=1759917415"},{"product_id":"dac3-b-rack-mount-silver","title":"DAC3 B Rack Mount (Silver)","description":"\u003cp\u003eThe DAC3 B is the ideal converter to use in front of Benchmark's HPA4 headphone amplifier or LA4 line amplifier. It is also ideal for many professional studio applications. It delivers the full performance of the flagship DAC3 HGC, but eliminates the volume control, the analog inputs, the mute and polarity controls, and the headphone amplifier.\u003c\/p\u003e\n\u003cp\u003eTo make system integration easy, the DAC3 B retains IR remote control (handset optional), 12 V trigger,  and the programmable auto-on feature. The DAC3 B adds a control-lock feature that turns off the remote control and locks the keypad to prevent tampering and accidental changes. The optional 1\/2-width rack-mount faceplate allows the mounting of two units in a single 1-RU rack space.\u003c\/p\u003e\n\u003cp\u003eThe DAC3 B sounds exactly like the DAC3 HGC because it uses the exact same circuit board and the exact same audio path. Benchmark has simply eliminated the unnecessary parts to deliver a stripped down race car of a converter. If you want a basic D\/A converter that delivers the finest conversion available, the DAC3 B is for you.\u003c\/p\u003e\n\u003cp\u003eThe DAC3 B  is a 2-channel D\/A converter featuring the new ESS Technologies ES9028PRO converter chip. The DAC3 converter has lower THD and THD+N noise than Benchmark's DAC2 converters.\u003c\/p\u003e\n\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReference Performance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466986586431,"sku":"15348","price":2695.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15348_full.jpg?v=1759917426"},{"product_id":"dac3-l-silver","title":"DAC3 L (Silver)","description":"\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReference Performance\u003c\/b\u003e\nThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDAC3 vs. DAC2\u003c\/b\u003e\nThe DAC3 builds upon Benchmark's highly successful DAC2 product family. The DAC3 maintains the familiar DAC2 form factor and feature set, but adds the higher performance available from the new ES9028PRO D\/A converter. The DAC3 offers the following improvements over the DAC2:\nActive 2nd Harmonic Compensation\nActive 3rd Harmonic Compensation\nLower THD+N\nLower passband ripple\nImproved frequency response\nFaster PLL lock times\nFaster switching between input signals\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDAC3 vs. DAC1\u003c\/b\u003e\nThe DAC3 and DAC2 added these features that were not found on the DAC1\u003c\/p\u003e\n\u003cp\u003eAsynchronous 192kHz USB Audio 2.0\n32-bit D\/A conversion system\nWord Length Display\nSample Rate Display\nPolarity Control\nDirect DSD D\/A Conversion\n-20 dB DIM\nBi-Directional 12V Trigger\nPower Switch with Auto-On Function\nHome Theater Bypass\nDigital Pass-Through\nHigh-Headroom DSP\nDual-Domain Hybrid Gain Control\nAdditional I\/O\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNative DSD Conversion\u003c\/b\u003e\nAll digital inputs on the DAC3 support native PCM or DSD conversion. From any input, DSD is transported with bit accuracy over DoP 1.1. DSD and PCM are both natively converted to analog. There are no DSD to PCM or PCM to DSD conversions to compromise the quality of the music. The DAC3 conversion system seamlessly switches between native PCM and native DSD conversion. DSD over DoP 1.1 is supported by many media players, and DSD downloads are now available from several sources.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDirect Connectivity to Power Amplifiers\u003c\/b\u003e\nBenchmark DAC1, DAC2, and DAC3 converters are designed to directly drive power amplifiers and speakers. Benchmark converters feature adjustable low-impedance passive attenuators at the XLR outputs that can be used to optimize the interface to the power amplifier (or powered monitor). This unique Benchmark feature optimizes the gain staging between the DAC and the power amplifier. Proper gain staging cannot be overemphasised. When audio stages are properly matched, each component in the audio chain is able to operate at its optimum signal level, and the system performance is significantly improved.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSonically-Neutral Studio Monitoring\u003c\/b\u003e\nAll Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add \"euphonic\" coloration to the audio. Instead it is designed to be as uncolored and natural as possible.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eStep Into the Studio\u003c\/b\u003e\nWhen Benchmark's professional converters are used in hi-fi applications, studio-quality sound can be enjoyed in a home environment. Enjoy pure music without any coloration from the electronics. Hear the music exactly the way it was heard in the studio, and exactly the way the artists intended.\u003c\/p\u003e\n\u003cp\u003eDiscover the natural, uncolored, analog sound of the DAC3.\nSit in the Performance Space\u003c\/p\u003e\n\u003cp\u003eTransparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.\u003c\/p\u003e\n\u003cp\u003eThis experience of \"being there\" cannot be created by systems that are designed to add \"warmth\" or \"euphonic color\" to the music.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466986651967,"sku":"15349","price":2995.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15349_full.jpg?v=1759917434"},{"product_id":"dac3-l-with-remote-silver","title":"DAC3 L with Remote (Silver)","description":"\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003eReference Performance\nThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e\n\u003cp\u003eDAC3 vs. DAC2\nThe DAC3 builds upon Benchmark's highly successful DAC2 product family. The DAC3 maintains the familiar DAC2 form factor and feature set, but adds the higher performance available from the new ES9028PRO D\/A converter. The DAC3 offers the following improvements over the DAC2:\nActive 2nd Harmonic Compensation\nActive 3rd Harmonic Compensation\nLower THD+N\nLower passband ripple\nImproved frequency response\nFaster PLL lock times\nFaster switching between input signals\u003c\/p\u003e\n\u003cp\u003eDAC3 vs. DAC1\nThe DAC3 and DAC2 added these features that were not found on the DAC1\u003c\/p\u003e\n\u003cp\u003eAsynchronous 192kHz USB Audio 2.0\n32-bit D\/A conversion system\nWord Length Display\nSample Rate Display\nPolarity Control\nDirect DSD D\/A Conversion\n-20 dB DIM\nBi-Directional 12V Trigger\nPower Switch with Auto-On Function\nHome Theater Bypass\nDigital Pass-Through\nHigh-Headroom DSP\nDual-Domain Hybrid Gain Control\nAdditional I\/O\u003c\/p\u003e\n\u003cp\u003eNative DSD Conversion\nAll digital inputs on the DAC3 support native PCM or DSD conversion. From any input, DSD is transported with bit accuracy over DoP 1.1. DSD and PCM are both natively converted to analog. There are no DSD to PCM or PCM to DSD conversions to compromise the quality of the music. The DAC3 conversion system seamlessly switches between native PCM and native DSD conversion. DSD over DoP 1.1 is supported by many media players, and DSD downloads are now available from several sources.\u003c\/p\u003e\n\u003cp\u003eDirect Connectivity to Power Amplifiers\nBenchmark DAC1, DAC2, and DAC3 converters are designed to directly drive power amplifiers and speakers. Benchmark converters feature adjustable low-impedance passive attenuators at the XLR outputs that can be used to optimize the interface to the power amplifier (or powered monitor). This unique Benchmark feature optimizes the gain staging between the DAC and the power amplifier. Proper gain staging cannot be overemphasised. When audio stages are properly matched, each component in the audio chain is able to operate at its optimum signal level, and the system performance is significantly improved.\u003c\/p\u003e\n\u003cp\u003eSonically-Neutral Studio Monitoring\nAll Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add \"euphonic\" coloration to the audio. Instead it is designed to be as uncolored and natural as possible.\u003c\/p\u003e\n\u003cp\u003eStep Into the Studio\nWhen Benchmark's professional converters are used in hi-fi applications, studio-quality sound can be enjoyed in a home environment. Enjoy pure music without any coloration from the electronics. Hear the music exactly the way it was heard in the studio, and exactly the way the artists intended.\u003c\/p\u003e\n\u003cp\u003eDiscover the natural, uncolored, analog sound of the DAC3.\nSit in the Performance Space\u003c\/p\u003e\n\u003cp\u003eTransparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.\u003c\/p\u003e\n\u003cp\u003eThis experience of \"being there\" cannot be created by systems that are designed to add \"warmth\" or \"euphonic color\" to the music.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466986881343,"sku":"15350","price":3149.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15350_full.jpg?v=1759917445"},{"product_id":"dac3-hgc-black","title":"DAC3 HGC (Black)","description":"\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReference Performance\u003c\/b\u003e\nThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDAC3 vs. DAC2\u003c\/b\u003e\n\u003c\/p\u003e\u003cli\u003eThe DAC3 builds upon Benchmark's highly successful DAC2 product family. The DAC3 maintains the familiar DAC2 form factor and feature set, but adds the higher performance available from the new ES9028PRO D\/A converter. The DAC3 offers the following improvements over the DAC2:\u003c\/li\u003e\u003cli\u003eActive 2nd Harmonic Compensation\u003c\/li\u003e\u003cli\u003eActive 3rd Harmonic Compensation\u003c\/li\u003e\u003cli\u003eLower THD+N\u003c\/li\u003e\u003cli\u003eLower passband ripple\u003c\/li\u003e\u003cli\u003eImproved frequency response\u003c\/li\u003e\u003cli\u003eFaster PLL lock times\u003c\/li\u003e\u003cli\u003eFaster switching between input signals\u003c\/li\u003e\n\u003cb\u003eDAC3 vs. DAC1\u003c\/b\u003e\nThe DAC3 and DAC2 added these features that were not found on the DAC1\n\u003cli\u003eAsynchronous 192kHz USB Audio 2.0\u003c\/li\u003e\u003cli\u003e32-bit D\/A conversion system\u003c\/li\u003e\u003cli\u003eWord Length Display\u003c\/li\u003e\u003cli\u003eSample Rate Display\u003c\/li\u003e\u003cli\u003ePolarity Control\u003c\/li\u003e\u003cli\u003eDirect DSD D\/A Conversion\u003c\/li\u003e\u003cli\u003e-20 dB DIM\u003c\/li\u003e\u003cli\u003eBi-Directional 12V Trigger\u003c\/li\u003e\u003cli\u003ePower Switch with Auto-On Function\u003c\/li\u003e\u003cli\u003eHome Theater Bypass\u003c\/li\u003e\u003cli\u003eDigital Pass-Through\u003c\/li\u003e\u003cli\u003eHigh-Headroom DSP\u003c\/li\u003e\u003cli\u003eDual-Domain Hybrid Gain Control\u003c\/li\u003e\u003cli\u003eAdditional I\/O\u003c\/li\u003e\n\u003cb\u003eNative DSD Conversion\u003c\/b\u003e\nAll digital inputs on the DAC3 support native PCM or DSD conversion. From any input, DSD is transported with bit accuracy over DoP 1.1. DSD and PCM are both natively converted to analog. There are no DSD to PCM or PCM to DSD conversions to compromise the quality of the music. The DAC3 conversion system seamlessly switches between native PCM and native DSD conversion. DSD over DoP 1.1 is supported by many media players, and DSD downloads are now available from several sources.\n\u003cp\u003e\u003cb\u003eDirect Connectivity to Power Amplifiers\u003c\/b\u003e\nBenchmark DAC1, DAC2, and DAC3 converters are designed to directly drive power amplifiers and speakers. Benchmark converters feature adjustable low-impedance passive attenuators at the XLR outputs that can be used to optimize the interface to the power amplifier (or powered monitor). This unique Benchmark feature optimizes the gain staging between the DAC and the power amplifier. Proper gain staging cannot be overemphasised. When audio stages are properly matched, each component in the audio chain is able to operate at its optimum signal level, and the system performance is significantly improved.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSonically-Neutral Studio Monitoring\u003c\/b\u003e\nAll Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add \"euphonic\" coloration to the audio. Instead it is designed to be as uncolored and natural as possible.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eStep Into the Studio\u003c\/b\u003e\nWhen Benchmark's professional converters are used in hi-fi applications, studio-quality sound can be enjoyed in a home environment. Enjoy pure music without any coloration from the electronics. Hear the music exactly the way it was heard in the studio, and exactly the way the artists intended.\u003c\/p\u003e\n\u003cp\u003eDiscover the natural, uncolored, analog sound of the DAC3.\nSit in the Performance Space\u003c\/p\u003e\n\u003cp\u003eTransparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.\u003c\/p\u003e\n\u003cp\u003eThis experience of \"being there\" cannot be created by systems that are designed to add \"warmth\" or \"euphonic color\" to the music.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51466986946879,"sku":"15351","price":3449.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/15351_full.jpg?v=1759917454"},{"product_id":"hpa4-with-remote-control-black","title":"HPA4 with Remote Control (Black)","description":"\u003cp\u003eTHX AAA reduces harmonic, intermodulation, and crossover distortion by 20 to 40 dB to guarantee a realistic and fatigue-free listening experience. It accomplishes this using a patented feed-forward topology to null conventional distortion and noise mechanisms, resulting in the world's most linear amplifier. THX AAA allows the amplifier to reach its maximum output power and sound pressure level (SPL) without producing the distortion that normally accompanies increased output levels in traditional amplifiers.\u003c\/p\u003e\n\u003cp\u003eFeaturing the flagship THX-888 amplifier design, the revolutionary HPA4 headphone amplifier incorporates the same THX AAAtechnology that Benchmark uses in the AHB2 power amplifier. The HPA4 delivers sonic perfection. Hear the music without any contamination from electronic noise or distortion. The HPA4 delivers power, audio fidelity, speed and accuracy over an utterly silent background.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTHE ULTIMATE LINE AMPLIFIER\u003c\/b\u003e\nThe THX-888 amplifier is driven by a Benchmark line amplifier that features relay gain control, relay input selection, and relay muting. The line amplifier incorporates the finest gold-contact relays available. The gain control has 256 steps in 0.5 dB increments. It also features a balance control. Relay closures are precisely timed to deliver silky-smooth volume changes. No other relay gain control offers this level of precision and performance. The HPA4 includes 4 independent 256-step attenuators: two for the L\u0026amp;R headphone outputs, and two for the L\u0026amp;R line outputs. To make this all happen, the HPA4 includes a total of 64 precision relays.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e100% ANALOG SIGNAL PATH\u003c\/b\u003e\nThe HPA4 is 100% analog. It is designed to be driven from an external D\/A converter or an external analog source. The HPA4 is designed to provide the ultimate analog signal path between inputs and outputs. The HPA4 eclipses the performance of typical high-end preamplifiers by achieving much lower noise and distortion.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHIGH VOLTAGE, HIGH CURRENT AND HIGH POWER\u003c\/b\u003e\nThe THX-888 amplifiercan cleanly deliver high voltage into low-sensitivity high-impedance headphones and it can cleanly deliver high power and current into low-impedance headphones. The HPA4 delivers 11.9 Vrms into 300 Ohms and 6 Watts into 16 Ohms. Given these extreme capabilities, Benchmark has incorporated several protection systems to protect expensive headphones and the amplifier itself. These include DC detection, short-circuit detection, over-current protection, over-voltage protection, and thermal protection.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSPEED AND PRECISION\u003c\/b\u003e\nThe bandwidth of the HPA4 extends from 0.01 Hz to over 500 kHz. This means that the HPA4 delivers very precise amplitude and phase accuracy over the entire audio bandwidth. Wave shapes are accurately reproduced, and the entire spectrum is delivered with precise timing. The HPA4 will deliver musical overtones with life-like accuracy. This means that musical instruments are rendered without changing their sonic character.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBALANCED AND UNBALANCED I\/O\u003c\/b\u003e\nThe headphone output of the THX-888 amplifierfeatures a 1\/4\" TRS and a 4-pin XLR. Both outputs deliver the full performance of the HPA4. However, we recommend the XLR4 due to its lower contact resistance. The HPA4 features two balanced stereo inputs and two unbalanced stereo inputs. The line amplifier provides one balanced stereo output, one balanced mono sum, and one unbalanced stereo output.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSYSTEM INTEGRATION\u003c\/b\u003e\nThe HPA4 includes IR remote control and can be operated using the optional Benchmark remote. The HPA4 is designed to work with the Benchmark DAC2 and DAC3 converters but may be driven from any high-end D\/A converter. When paired with a Benchmark DAC, a single remote control will operate both units.\u003c\/p\u003e\n\u003cp\u003eThe HPA4 is the perfect complement to the Benchmark AHB2. It may be the only preamplifier or line amplifier that exceeds the signal to noise ratio of the ultra-quiet AHB2. This means that the HPA4 will extract the full performance of the AHB2. In contrast, other preamplifiers limit the system noise performance because they cannot match the SNR performance of the AHB2. The HPA4 is the only line amplifier\/preamplifier that we recommend inserting between a DAC and the AHB2. The HPA4 can be inserted between a Benchmark DAC3 and AHB2 without degrading the system noise performance. With the HPA4 inserted, the DAC3's 32-bit digital gain control is replaced by the HPA4's more-resolving fully-analog relay gain control.\u003c\/p\u003e\n\u003cp\u003eTwo bidirectional 12V trigger ports can be used to link the HPA4 with external D\/A converters and power amplifiers. The trigger signal controls the power-up and power-down sequencing of the entire audio system. The trigger ports are compatible with most industry-standard trigger input or output ports, but can communicate bidirectionally with other Benchmark products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTOUCH SCREEN\u003c\/b\u003e\nThe touch screen provides easy access to advanced features such as balance control, input level offsets, input names, screen dimming, remote control, and function locking. Help screens explain the special functions.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eROTARY ENCODER\u003c\/b\u003e\nThe volume control knob features a high-quality optical encoder that is rated for heavy use. An acceleration feature makes it easy to move through the 256 volume steps while maintaining 0.5 dB\/step resolution. A press of the control knob toggles between headphone volume, line out volume, or both.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCONVENIENCE FEATURES\u003c\/b\u003e\nThe HPA4 includes independent on-screen mute buttons for the headphone and line outputs. Both can also be muted with the volume knob or with the optional remote control.\u003c\/p\u003e\n\u003cp\u003eThe HPA4 includes an on-screen -20 dB dim button that instantly reduces the level by 20dB. This function provides a temporary volume reduction and an easy return to the previous listening level. This control makes it easy to transition between a normal listening level and a background level. The dim function is also accessible from the optional remote control.\u003c\/p\u003e\n\u003cp\u003eInputs may be renamed and unused inputs may be disabled. Input levels can be trimmed to provide input-to-input level matching.\u003c\/p\u003e\n\u003cp\u003eScreen brightness is adjustable and timers can be set to dim or shut off the display. The screen can be locked to prevent access to advanced features.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCASEWORK\u003c\/b\u003e\nThe HPA4 is available with a black or silver faceplate and is designed to match the Benchmark AHB2 power amplifier. It occupies the same footprint as the Benchmark DAC1, DAC2 and DAC3 converters. The case features a milled faceplate and milled sides. Top, bottom, and rear panels are made from thick aluminum and feature a brushed texture. The HPA4 is built to last and will be a fine addition to your listening space.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDESIGNED, ASSEMBLED, AND TESTED IN THE USA\u003c\/b\u003e\nThis Benchmark product was designed, assembled, and tested in the USA using USA and imported components. Most major components are made in USA.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51467108024639,"sku":"16971","price":5875.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/16971_full.jpg?v=1759927789"},{"product_id":"hpa4-with-remote-control-silver","title":"HPA4 with Remote Control (Silver)","description":"\u003cp\u003eTHX AAA reduces harmonic, intermodulation, and crossover distortion by 20 to 40 dB to guarantee a realistic and fatigue-free listening experience. It accomplishes this using a patented feed-forward topology to null conventional distortion and noise mechanisms, resulting in the world's most linear amplifier. THX AAA allows the amplifier to reach its maximum output power and sound pressure level (SPL) without producing the distortion that normally accompanies increased output levels in traditional amplifiers.\u003c\/p\u003e\n\u003cp\u003eFeaturing the flagship THX-888 amplifier design, the revolutionary HPA4 headphone amplifier incorporates the same THX AAAtechnology that Benchmark uses in the AHB2 power amplifier. The HPA4 delivers sonic perfection. Hear the music without any contamination from electronic noise or distortion. The HPA4 delivers power, audio fidelity, speed and accuracy over an utterly silent background.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTHE ULTIMATE LINE AMPLIFIER\u003c\/b\u003e\nThe THX-888 amplifier is driven by a Benchmark line amplifier that features relay gain control, relay input selection, and relay muting. The line amplifier incorporates the finest gold-contact relays available. The gain control has 256 steps in 0.5 dB increments. It also features a balance control. Relay closures are precisely timed to deliver silky-smooth volume changes. No other relay gain control offers this level of precision and performance. The HPA4 includes 4 independent 256-step attenuators: two for the L\u0026amp;R headphone outputs, and two for the L\u0026amp;R line outputs. To make this all happen, the HPA4 includes a total of 64 precision relays.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e100% ANALOG SIGNAL PATH\u003c\/b\u003e\nThe HPA4 is 100% analog. It is designed to be driven from an external D\/A converter or an external analog source. The HPA4 is designed to provide the ultimate analog signal path between inputs and outputs. The HPA4 eclipses the performance of typical high-end preamplifiers by achieving much lower noise and distortion.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHIGH VOLTAGE, HIGH CURRENT AND HIGH POWER\u003c\/b\u003e\nThe THX-888 amplifiercan cleanly deliver high voltage into low-sensitivity high-impedance headphones and it can cleanly deliver high power and current into low-impedance headphones. The HPA4 delivers 11.9 Vrms into 300 Ohms and 6 Watts into 16 Ohms. Given these extreme capabilities, Benchmark has incorporated several protection systems to protect expensive headphones and the amplifier itself. These include DC detection, short-circuit detection, over-current protection, over-voltage protection, and thermal protection.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSPEED AND PRECISION\u003c\/b\u003e\nThe bandwidth of the HPA4 extends from 0.01 Hz to over 500 kHz. This means that the HPA4 delivers very precise amplitude and phase accuracy over the entire audio bandwidth. Wave shapes are accurately reproduced, and the entire spectrum is delivered with precise timing. The HPA4 will deliver musical overtones with life-like accuracy. This means that musical instruments are rendered without changing their sonic character.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBALANCED AND UNBALANCED I\/O\u003c\/b\u003e\nThe headphone output of the THX-888 amplifierfeatures a 1\/4\" TRS and a 4-pin XLR. Both outputs deliver the full performance of the HPA4. However, we recommend the XLR4 due to its lower contact resistance. The HPA4 features two balanced stereo inputs and two unbalanced stereo inputs. The line amplifier provides one balanced stereo output, one balanced mono sum, and one unbalanced stereo output.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSYSTEM INTEGRATION\u003c\/b\u003e\nThe HPA4 includes IR remote control and can be operated using the optional Benchmark remote. The HPA4 is designed to work with the Benchmark DAC2 and DAC3 converters but may be driven from any high-end D\/A converter. When paired with a Benchmark DAC, a single remote control will operate both units.\u003c\/p\u003e\n\u003cp\u003eThe HPA4 is the perfect complement to the Benchmark AHB2. It may be the only preamplifier or line amplifier that exceeds the signal to noise ratio of the ultra-quiet AHB2. This means that the HPA4 will extract the full performance of the AHB2. In contrast, other preamplifiers limit the system noise performance because they cannot match the SNR performance of the AHB2. The HPA4 is the only line amplifier\/preamplifier that we recommend inserting between a DAC and the AHB2. The HPA4 can be inserted between a Benchmark DAC3 and AHB2 without degrading the system noise performance. With the HPA4 inserted, the DAC3's 32-bit digital gain control is replaced by the HPA4's more-resolving fully-analog relay gain control.\u003c\/p\u003e\n\u003cp\u003eTwo bidirectional 12V trigger ports can be used to link the HPA4 with external D\/A converters and power amplifiers. The trigger signal controls the power-up and power-down sequencing of the entire audio system. The trigger ports are compatible with most industry-standard trigger input or output ports, but can communicate bidirectionally with other Benchmark products.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTOUCH SCREEN\u003c\/b\u003e\nThe touch screen provides easy access to advanced features such as balance control, input level offsets, input names, screen dimming, remote control, and function locking. Help screens explain the special functions.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eROTARY ENCODER\u003c\/b\u003e\nThe volume control knob features a high-quality optical encoder that is rated for heavy use. An acceleration feature makes it easy to move through the 256 volume steps while maintaining 0.5 dB\/step resolution. A press of the control knob toggles between headphone volume, line out volume, or both.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCONVENIENCE FEATURES\u003c\/b\u003e\nThe HPA4 includes independent on-screen mute buttons for the headphone and line outputs. Both can also be muted with the volume knob or with the optional remote control.\u003c\/p\u003e\n\u003cp\u003eThe HPA4 includes an on-screen -20 dB dim button that instantly reduces the level by 20dB. This function provides a temporary volume reduction and an easy return to the previous listening level. This control makes it easy to transition between a normal listening level and a background level. The dim function is also accessible from the optional remote control.\u003c\/p\u003e\n\u003cp\u003eInputs may be renamed and unused inputs may be disabled. Input levels can be trimmed to provide input-to-input level matching.\u003c\/p\u003e\n\u003cp\u003eScreen brightness is adjustable and timers can be set to dim or shut off the display. The screen can be locked to prevent access to advanced features.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCASEWORK\u003c\/b\u003e\nThe HPA4 is available with a black or silver faceplate and is designed to match the Benchmark AHB2 power amplifier. It occupies the same footprint as the Benchmark DAC1, DAC2 and DAC3 converters. The case features a milled faceplate and milled sides. Top, bottom, and rear panels are made from thick aluminum and feature a brushed texture. The HPA4 is built to last and will be a fine addition to your listening space.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDESIGNED, ASSEMBLED, AND TESTED IN THE USA\u003c\/b\u003e\nThis Benchmark product was designed, assembled, and tested in the USA using USA and imported components. Most major components are made in USA.\u003c\/p\u003e","brand":"BENCHMARK","offers":[{"title":"Default Title","offer_id":51467108090175,"sku":"16972","price":5875.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6931\/1551\/files\/16972_full.jpg?v=1759927802"}],"url":"https:\/\/www.economik.com\/collections\/benchmark.oembed?page=2","provider":"Studio Economik","version":"1.0","type":"link"}