John Hardy Company MPC-600

Superior Plug-In Replacement for MCI 600-Series Preamplifiers

OUR PART #: MPC-600 Write the First Review.

A superior plug-in replacement for MCI 600-series console mic preamps.
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Our Price: $322.40
List Price: $325.00
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A superior plug-in replacement for MCI 600-series console mic preamps. The MPC-600 drastically improves performance by using a combination of the Jensen JT-16-B mic input transformer (Jensen's best mic input model), the 990C discrete class-A op-amp, and the total absence of coupling capacitors in the signal path. Just plug it in!


  • Jensen's JT-16-B Input Transformer
  • 990 Discrete Class-A Op-Amp
  • Elimination of all coupling capacitors from the signal path
  • 1% 100ppm Metal Film Resistors
  • Electrolytic Capacitors with a 105°C Temperature rating
  • Fully Sealed 25-turn Cermet Trim Pots


  • E.I.N., 20-20kHz unweighted
     150 Ohm source: -129 dBu
     0 Ohm source: -132 dBu
  • Maximum input level =20Hz: +9 dBu
  • Maximum output level at 990 output 75 Ohm load: +21 dBu
  • CMRR
     100Hz: 100 dB
     10kHz: 80 dB
  • Deviation from linear phase 20Hz-120kHz: <2 deg


  • 60dB gain, 10k Ohm load, +21dBu output
     10kHz: 0.005 %
     1kHz: 0.004 %
  • 40dB gain, 600 Ohm load, +21dBu output
     10kHz: 0.003 %
     1kHz: 0.003 %
  • 40dB gain, 75 Ohm load, +21dBu output
     10kHz: 0.030 %
     1kHz: 0.005 %
  • DC offset <100 µV

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