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Millennia HV-3D 4 Channel Mic Preamp - Used  From Millennia

4 Channel Mic Pre


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Millennia Media

"Gone, Baby, Gone"

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Manufacturer's Description from Millennia

Authentic Transparency for Unrestricted Creativity

·         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


·         DPA (B&K) +130 V mic inputs

·         DC inputs for ideal performance with dynamic and ribbon microphones

·         HDOE Output expansion option for three outs per channel

·         AD-D96 analog to digital converter card

Millennia Media

About Manufacturer

Established as a classical music recording company in the 1980s, Millennia Media has grown to become one of the world's respected manufacturers of critical audio recording products. Now with more than 40,000 microphone preamplifier channels shipped, Millennia continues to set sonic precedent in solid-state and vacuum tube mic amps, equalizers, compressors, mixers, and recording channels. With numerous industry awards, fourteen TEC nominations, ten PAR Excellence and Reviewer's Pick awards, an E.Q. Blue Ribbon Award, three Stereophile Class A awarded products, an extensive owner's register of leading audio professionals, and a reputation for musical realism second to none, we believe you won't find a more transparent range of professional audio products on the planet.


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



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

45 watts maximum

Power Requirements

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

Dimensions/Shipping Weight

19” W x 3.5” H x 12.5” D, 25 lbs.