The Benchmark H1 is an ultra-high resolution stereo headphone amplifier with current boosted outputs that will drive headphones with impedances down to 60 ohm.
Inside the H1 is Benchmark's signature headphone amplifier module, the HPA-2. The sonic purity of the HPA-2 fulfills even the most demanding headphone applications. The spectacularly clean performance offers true state-of-the-art listening with today's ultra-high performance headphones.
Benchmark H1's features
The PS-1, a ±16 VDC, 300 mA wall mount power supply, is included with every H1.
By physically separating the power supply from the audio electronics, EMI (Electromagnetic Interference) generated from the transformer in-rush currents at the filter capacitors is prevented from contaminating the audio signal.
Benchmark H1's specifications
Input Stereo 200 kO Balanced Inputs with over-voltage protection
Input Clip +26.5 dBu with ±15 volt supplies
Output Stereo, for use with 1/4" Tip/Ring/Sleeve plugs only, short-circuit protected
Output Impedance 0 ?
Load Z 60 ? or greater
Output Clip Dependant upon power voltage and load [+20 dBu @ ±15V and 60 O load]
Load Impedance 30 O or higher
Output Level Up to +20 dBu into 60 O [dependent upon power source]
Output Control Dual log taper response
Gain Range Off to +20 dB
Bandwidth 0.1 Hz to 300 kHz minimum
THD+N 0.0003% typical at headphone inputs - under load!
Noise Floor Better than -75 dBu at maximum gain
Power (Bipolar) ± 9 to ± 18 volts, bridge-rectified, maximum peak current needed = 1.1 Amp at maximum peak output into 30 O
Peak Output 7.5 watts [±18 volt supplies. 30 O load]
Max Avg Output 1.35 watts [-8 dB peak to average ratio]
Studio Economik UA Apollo NEWS! We are placing the 1rst order for UA Apollo right now, available end February. Limited quantity available on first shipment. Pre-orders available. Please contact us to get yours!
