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Biz - Mic Preamplifier MODULES


 
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Product Code: BIZ - MIC
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Purple Audio Biz - Mic Preamplifier MODULES






A unique sounding, three amplifier, discrete microphone preamp module designed to work in standard "500" racks. The smooth Gain control helps you dial in the sound you want. If the output level is too high (the Class A/B output opamp can pump out up to +27 dBu), you can ride the level down with the separate Level control. Pressing the "Dual" switch splits the gain between two of our Class A opamps, enabling up to 75 dBu of clean gain, making the Biz a perfect match for ribbon microphones. With different Gain, Level, and Dual settings the Biz can produce an infinite variety of tonal variations with the same amount of output level. The front panel DI helps you record instruments and line level sources with unrivaled clarity and punch. Two LEDs clearly indicate signal level for the gain and output stages at a glance, turning green to indicate signal present, yellow for 10dB below clipping, and red for clipping. The Biz uses two KDJ3 opamps and one KDJ4 opamp. 

Specs:
  • Maximum output level +27dBu
  • Frequency response 10hz – 70kHz +/- 1db
    (3db down at 100kHz) Transformer input:
  • Mic mode
          Maximum gain 60dB in single mode
          Maximum gain 75dB in dual mode
          Line mode
          Maximum gain 35dB in single mode
          Maximum gain 50dB in dual mode
  • Direct input:
    Maximum gain 30dB in single mode
    Maximum gain 40dB in dual mode
  • Beginning Serial Number 1600 February 2008: Over Current Resettable Fused   
  • (prevents any module problem from affecting your rack) ROHS - Lead Free
Biz Pinout
  • Pin 1: Chassis Ground
  • Pin 2: Output A +
  • Pin 3: Output B+ (Purple Audio Rack Only - XLR OUT 2)
  • Pin 4: Output A -
  • Pin 5: Audio Ground
  • Pin 6: Output B - (Purple Audio Rack Only - XLR OUT 2)
  • Pin 7: Input -
  • Pin 8: Input -
  • Pin 9: Input +
  • Pin 10: Input +
  • Pin 11: NC
  • Pin 12: +15 or 16VDC 80ma
  • Pin 13: Audio Ground
  • Pin 14: -15 or 16VDC 80ma
  • Pin 15: +48VDC
Features:

  • Output level control
  • Input and output tricolor LED metering
  • Mic / Line switch for rack input
    Bridging line input for high output mics or line level sources
    Use with our Moiyn 8x2 mixer module in the Sweet Ten rack for mic or line mixing
  • DI Load switch for front panel input
    33kohms as in the original Biz or 100kohms for a more open tone
  • Discrete signal path
  • Over Current Resettable Fused (prevents any module problem from affecting your rack)
  • ROHS - Lead Free




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