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MXR M87 Bass Compressor Pedal - Blackout Series

Compressor Bass Effects Pedal with Constant Headroom Technology and LED Gain-reduction Meter - Blackout Series
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MXR M87 Bass Compressor Pedal - Blackout Series
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Studio-quality Bass Compression

The MXR M87 Bass Compressor packs rackmount-quality dynamics processing into a durable, lightweight stompbox. You get all the familiar controls you'd find in a recording studio — Attack, Release, Ratio, Input, and Output — enabling you to achieve everything from invisible peak limiting to full-bore squash. The M87's Constant Headroom Technology (CHT) guarantees maximum headroom and clarity, permitting your bass's full dynamic range right up to the compressor's threshold. The bassists here at Sweetwater appreciate this pedal's 10-segment LED gain-reduction meter, which makes dialing in your sound as easy as 1-2-3. True bypass switching rounds out this must-have bass effects pedal. Players who demand studio-level compression onstage will love everything about the M87 Bass Compressor — no rack required.

MXR M87 Bass Compressor Pedal Features:

  • Packs studio-quality compression into a durable, lightweight stompbox
  • Dial in everything from invisible peak limiting to full-bore squash with Attack, Release, Ratio, Input, and Output controls
  • Constant Headroom Technology (CHT) guarantees maximum headroom and clarity
  • Permits your bass's full dynamic range right up to the compressor's threshold
  • 10-segment LED gain-reduction meter makes dialing in your sound easy
  • True bypass switching maintains your tone when the effect is off

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Tech Specs

  • Pedal Type: Bass Compressor
  • Analog/Digital: Analog
  • Inputs: 1 x 1/4"
  • Outputs: 1 x 1/4"
  • Bypass Switching: True Hardwire
  • Power Source: 9V DC power supply (sold separately)
  • Batteries: 1 x 9V
  • Power Usage: 19mA
  • Height: 2.12"
  • Width: 2.62"
  • Depth: 4.37"
  • Weight: 0.56 lbs.
  • Manufacturer Part Number: M87B

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Customer Reviews

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Rated 4/5

After a month...

I have really enjoyed using this pedal, despite not having previously used any compressor pedals in this price range, I get exactly what I want out of it. It is easy to modify your signal and see the amount of compression on the LED meter.

Tasting notes:
Very crisp and clean. This is clearly a digital pedal, and will work well in those types of applications. When you keep the meter below the yellow, you get a very natural compression, but as it starts to hit the dynamic ceiling, you lose a lot of the tone in your instrument.

When all of the knobs are set to noon, the sound is classic and hifi. I like to keep my ratio at 16-20 because I find that I get the most pleasing effect using this pedal as a limiter. Perfect for slap, just be careful to adjust your attack and release to taste. The best way to do this is to pick/slap the strings forcefully in order to get the true character of the compressor.

Also the knobs use glow-in-the-dark paint. :)
Rated 1/5

Gain Reduction LED always at 10

Pedal is functional but the LED gain reduction always ON all the way to red (10) I just used the pedal for 5 minutes right after receiving it so I have no clue how it perform in live situation.

I have to return and thanks to Sweetwater for prompt response!
Music background: Variety
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