The HV-3C (new for QIV of 2005) is a two channel, stereo matched microphone preamplifier uncompromised in sonic character, technical specification, and mechanical workmanship. Combining a precisely matched octet of discrete bipolar transistors with a laser trimmed DC coupled FET-based output driver stage, the HV-3B is an entirely "double balanced," extremely wide dynamic range stereo microphone preamplifier intended for demanding acoustic work. Unlike "textbook" mic preamplifiers, the HV-3B signal path never unbalances or rebalances the original signal — maintaining a high degree of signal integrity. Thousands and thousands of HV-3B channels 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-3B is precisely optimized towards capturing the subtlest detail of music and ambience. With +23 dBu input headroom, the HV-3B requires no input pads 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.

Millennia Music & Media is an acoustic music production company and product engineering group. We have produced hundreds of symphony orchestra recording sessions and innumerable other smaller acoustic sessions. Millennia products are offered publicly only after painstaking improvements to even the smallest design detail. We ship only those products which pass our obsessively high standards for absolute musical realism.

HV-3B 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.

Four options are available for the HV-3B:

• B&K (DPA) +130V mic inputs
• High resolution 36 position mil-spec gold gain controls (standard on the HV-3B are 12 position mil-spec gold gain controls.)
• DC Input Option for ideal performance with dynamic microphones

* FUNCTION MODULE: Such as the Burr Brown INA-103 transimpedance mic preamp IC, the Analog Devices SSM-2017 mic preamp IC, and other common off-the-shelf mic preamp solutions.

Highlights

• HIGH SPEED TRANSFORMERLESS DESIGN

• 23 dB INPUT & 32 dB OUTPUT HEADROOM
• NO PADS (ATTENUATORS) REQUIRED
• ENTIRELY BALANCED AUDIO PATH
• LASER TRIMMED FET-BASED OUTPUT
• THD+N LESS THAN 5 PPM (.0005%)
• MATCHED DISCRETE OCTET FRONT-END
• OPTIONAL BRÜEL & KJÆR (DPA) +130V MIC INPUTS
• OPTIONAL 24 BIT, 192 kHz "POW-R" A/D CONVERTERS (HV-3C/24, 2002)
• OPTIONAL "DC INPUTS" — IDEAL FOR RIBBON MICS
• PRECISION COMPONENTRY THROUGHOUT
• GOLD AUDIO CONNECTORS & SWITCHES
• STEREO GAIN MATCHED TO .04 dB
• OFC AUDIO CABLING, SILVER TEFLON POWER WIRING
• ULTRA-CLEAN TOROID POWER SUPPLY
• WELDED 16 GAUGE STEEL RACK CHASSIS
• UNSURPASSED AMBIENCE RETRIEVAL
• EFFORTLESS, LIFELIKE MUSICAL PERFORMANCE AT ALL DYNAMIC LEVELS

Atlas Pro Audio

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