6 Channel Stereo Mixer with EQ, EFX Loop, 1RU


The MX622 is a versatile mixer combining three balanced microphone or line level inputs with three stereo line inputs into a single stereo line level mix. Essential features include external effects loop (mono send with stereo return), independent stereo record outputs, stereo TRS 1/4" balanced outputs and rull range master two-band equalizer. The internal power supply and single rack-space 19" rack mount format allows for easy installation and reliable long-term operation.


  • Three balanced XLR inputs switchable mic/line level
  • Three stereo RCA inputs with separate level controls
  • Level Control and Clip Indicators
  • Selectable 15-volt phantom power for mic channels
  • Balanced TRS 1/4" main output jacks with Master Level Control
  • Versatile two-band master EQ
  • Separate stereo record outputs
  • Effects loop with level independent level control


  • Input Connections:
    XLR-F balanced (x3)
    1/4" unbalanced (x2)
    3 pairs stereo RCA (6 total)
  • Output Connections:
    TRS balanced 1/4" (x2)
    1/4" unbalanced (x1)
    RCA (x2)
  • Input Impedance:
    600/22k ohms mic/line XLR inputs
    10k ohms RCA inputs
    22k ohms 1/4" effects returns
  • Output Impedance:
    50 ohms 1/4" main outputs
    1k ohms RCA record outputs
    100 ohms effects output
  • Maximum Input Level:
    -10dBu/+20dBu mic/line XLR inputs
    +20dBu RCA line inputs
    +20dBu effects inputs
  • Maximum Output Level:
    +24dBu/+20dBu mic/line XLR inputs
    +20dBu RCA line inputs
    +20dBu effects inputs
  • Phantom Power: +15 Volts DC (regulated/low noise)
  • Maximum Gain:
    56dBu/26dB mic/line
    26dB RCA inputs
  • Signal to Noise Ratio: >90dB typical
  • THD: .01% typical
  • Equalizer Range: +/-12dB @ 100Hz & 10kHz
  • Power Requirements: 105 to 125 VAC; 50-60kHz, 15 Watts typical
  • Dimensions (H x W x D): 1.75" x 19" x 6"
  • Weight: 6.2 lbs

WARNING: Cancer and Reproductive Harm -

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