The Millenia HV-3C is a 2 channel high quality preamp. With unmatched performance, it is Millenia's flagship preamp topology.
Combining a precisely matched octet of discrete bipolar transistors with a laser trimmed DC coupled FET-based output driver stage, the HV-3C (tm) is an entirely "double balanced," extremely wide dynamic range stereo microphone preamplifier intended for demanding acoustic recording. Unlike "textbook" mic preamplifiers, the HV-3C signal path never unbalances or rebalances the original signal thus maintaining a high degree of signal integrity. Over 20,000 channels of HV-3 micamps are already in use by a who's-who in critical acoustic recording.
Unlike preamps using vacuum tubes, IC function modules and audio transformers (all of which can lend their own audio coloration) the Millennia HV-3C is precisely optimized towards capturing the subtlest detail of music and ambience. With +23 dBu native input headroom, the HV-3C requires no input pads, attenuators, or switch points as found on common textbook preamp designs - thus avoiding yet another source of sonic degradation. Moreover, with its +32 dBu output headroom, ultra-high dynamic stability and linearity is assured. NOTE: The HV-3C is a recently-updated version of the HV-3B two channel mic preamp, with improved mechanical design and cosmetics, and standard 36 step gain control. HV-3C uses the identical preamps as found in the HV-3D 8-ch units.
HV-3C signal path from input through output is entirely balanced with a minimum amplifier topology. Uncompromising circuit design with meticulous selection and hand-matching of critical components assures consistently transparent audio performance at all dynamic excursions and frequency extensions.
Unsurpassed ambience retrievalTransformerless design with matched hi-speed discrete transistor octet has 23 dB input headroom: no attenuator "pads" neededUncolored timbral accuracy at all dynamic levelsEntirely balanced audio path with precision components maintains signal integrity: THD under 5 ppm (.0005%)Effortless, vividly realistic, musical performanceLaser-trimmed FET-based output stage has 32 dB headroom: drives 1000 foot (300 m) cable runs with easeStandard 36-step gain controls (1.5 dB per step) are stereo matched to .08 dBUltra-clean toroid power supplyGold audio connectors and switchesMogami Neglex OFC audio wiringSilver Teflon power wiringWelded 16 gauge steel rack chassis
Maximum Gain (1.5 dB per step, 36 steps)
65 dB (up to 75 dB on request)
Frequency Response (+0 / -3 dB)
sub 3 Hz to beyond 300 kHz
Noise (60 dB Gain, 10 Hz - 30 kHz, Inputs common)
-133 dB EIN
Total Harmonic Distortion + Noise (35 dB Gain, 10 Hz - 20 kHz bandwidth, +27 dBu Out)
< .001%, Typ. < .0005% (< 5 ppm)
Intermodulation Distortion (50 Hz & 7 kHz) 35 dB Gain, +27 dBu Out
Phase Response (35 dB Gain, 50 Hz - 20 kHz bandwidth, +27 dBu Out)
< 2 degrees deviation
Common Mode Rejection Ratio (35 dB Gain, 10 Hz - 20 kHz bandwidth, 100 mV C.M.)
> 65 dB, Typ > 85 dB
Slew Rate (35 dB Gain, +27 dBu Out)
> 25 Volts per microsecond
Maximum Input Level (20 Hz - 40 kHz)
+23 dBu (no attenuator pads required)
Maximum Output Level (20 Hz - 40 kHz)
Phantom Input Impedance (1 kHz)
24.3 Ohms (x2)
DPA (B&K) Mic Powering
+130 V dc max, (non-phantom)
+48 V dc, +/- 2 V dc
12 watts maximum
Selectable: 100-120, 200-240 V ac, 50/60 Hz
19" W x 1.75" H x 12" D, 15 lbs.
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