MXR Bass Compressor


The Bass Compressor provides recording-quality compression with Constant Headroom Technology™ and true bypass switching for keeping your low end tight and clean.

Take your favorite studio compressor to the stage with the MXR Bass Compressor. A complete array of controls-Attack, Release, Ratio, Input, and Output-makes it easy to fine-tune your sound, from subtle peak limiting to hard squashed compression effects. Its CHT™ Constant Headroom Technology gives you plenty of headroom and clear performance. This totally transparent compressor allows your full dynamic range to shine through until your signal reaches the compression threshold, which is indicated by the ten, highly visible gain-reduction status LEDs. It's all packed into a durable, lightweight aluminum-housing pedal that's the size of a Phase 90.

  • Classic studio compressor in a Phase 90-sized pedal
  • CHT™ Constant Headroom 
  • Technology for clear, clean performance
  • Ten Gain Reduction status LEDs
  • True bypass

The MXR Bass Compressor is powered by one 9-volt battery (remove bottom plate to install), a 9-volt AC adapter such as the Dunlop ECB003/ECB003E, or a DC Brick™ power supply


Output Impedance:   600 Ω
Max Input Level:   +14 dBV
Max Output Level:   +8.5 dBV
Freq. Response:  ±1 dB, 20 Hz to 20 kHz
Noise Floor*:  -90 dBV
THD** > 0.5%
Gain:  31 dB
Compression Ratio:  4:1, 8:1, 12:1, 20:1
Attack Time:  20 µs to 800 µs
Release Time:  50 ms to 1.1 s
Bypass:  True Hardwire
Current Draw
   LEDs OFF 14 mA
   LEDs ON 19 mA
Power Supply:   9 volts DC

*A-Weighted, all controls at mid position
**20 dB gain reduction, 1.1s release setting,
50 Hz to 20 kHz

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
  • M87 Bass Compressor
Pedal Format
  • Standard

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Flipside Music

Denver, CO, CO, United States
Joined Reverb:2013

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