The Millenia HV-3D is an 8-Channel Mic/Line Preamp. The Millennia HV-3D (tm) is a four or eight channel, fully matched microphone preamplifier of uncompromising sonic character, technical specification, and mechanical workmanship. The HV-3D offers multiple channels of HV-3C preamplifiers at significantly less per-channel cost. With circuitry identical to Millennia's acclaimed HV-3C series high voltage microphone preamplifier, the HV-3D offers high resolution gain switching (36 steps @ 1.5 dB per step), optional B&K (DPA) 130V mic input option on every channel, DC-coupled input option on every channel for optimizing ribbon and other dynamic mics, a passive summing option, and future options, including remote gain control.

The main features of the Millenia HV-3D include:

• 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
• Options
  • 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