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    SSL Alpha VHD Pre 4-channel Mic Pre

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    The Alpha VHD-Pre offers four of SSL's widely acclaimed VHD Pre circuits in compact 1U format. First featured on SSL's flagship Duality console,the VHD Pre is a patented SSL preamp design that can deliver ultra-clean SSL grade recordings but also features a patented 'Variable Harmonic Drive' circuit which can be switched into the signal path. The Alpha VHD pre's give you ultimate versatility from a studio grade preamp. Whether it's ultra-clean traditional SSL, subtle warming or totally trashy transistor distortion. VHD delivers a uniquely versatile pallette of rich analogue character that can be applied as a mic pre, instrument DI or line level processing device.

      • Product Features:

        Ultra-clean SSL preamp with 75dB of gain

        48V phantom power

        20dB Pad switches that illuminate to indicate overload

        Hi Z switches to accommodate mic, line and instrument level signals

        Four independent Variable Harmonic Drive systems

        Front panel 1/4" jack instrument/line level inputs with passive DI type impedance detection and level matching

        Individual input, output and VHD controls for each section

        Rear panel XLR mic/line inputs and XLR outputs

      • Technical Specifications:

        Physical *
        Depth 230mm / 9" casing only
        Height 44.5mm / 1.75" (1 RU)
        Width 438mm / 17.25" casing only
          482mm / 19" inc’ rack ears
        Weight 2.6kg / 6 pounds
        Power < 20 Watts
        Boxed size 320mm x 550mm x 80mm
          12.75" x 21.75" x 3.25"
        Boxed weight 3.5kg / 8 pounds
        * All values are approximate
        Power Supply IEC320 3-pin connector, 100 – 240 Vac, 50 – 60 Hz
        Analogue I/O
        Microphone Balanced, 3-pin XLR-F, Zin = 1kΩ (10kΩ for Hi Z)
        Instrument Un-balanced, ¼" Mono Jack, Zin = 1MΩ
        Output Balanced, 3-pin XLR-M, Zo = 40Ω
        Power 5-pin 180° DIN connector, +5Vdc, ±15Vdc