MILLENNIA  |  SKU: 411

HV-3C

Dual Mic-Preamps

Acclaimed Millennia stereo mic preamp circuits. With unmatched performance, it is Millenia's flagship preamp topology.

$3,265.00 CAD
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Description

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.

Features

Unsurpassed ambience retrieval

Transformerless design with matched hi-speed discrete transistor octet has 23 dB input headroom: no attenuator "pads" needed

Uncolored timbral accuracy at all dynamic levels

Entirely balanced audio path with precision components maintains signal integrity: THD under 5 ppm (.0005%)

Effortless, vividly realistic, musical performance

Laser-trimmed FET-based output stage has 32 dB headroom: drives 1000 foot (300 m) cable runs with ease

Standard 36-step gain controls (1.5 dB per step) are stereo matched to .08 dB

Ultra-clean toroid power supply

Gold audio connectors and switches

Mogami Neglex OFC audio wiring

Silver Teflon power wiring

Welded 16 gauge steel rack chassis

Specifications

Minimum Gain


8.5 dB

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


< .0009%

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)


+32 dBu

Phantom Input Impedance (1 kHz)


6,750 ohms

Output Impedance


24.3 Ohms (x2)

DPA (B&K) Mic Powering


+130 V dc max, (non-phantom)

Phantom Powering


+48 V dc, +/- 2 V dc

Power Consumption


12 watts maximum

Power Requirements


Selectable: 100-120, 200-240 V ac, 50/60 Hz

Dimensions/Shipping Weight


19" W x 1.75" H x 12" D, 15 lbs.

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