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MXR M87 Bass Compressor Effects Pedal


(10 reviews)


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MSRP: Old Price $271.42 Discounted Price $189.99 Save : $81.43 (30%)
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MSRP: Old Price $271.42 Discounted Price $189.99 Save : $81.43 (30%)
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Take your favorite studio compressor to the stage with the MXR M87 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. And it’s all packed into a durable, lightweight aluminum-housing pedal that’s the size of a Phase 90!

  • CHT Constant Headroom Technology for clear, clean performance.
  • True bypass.
  • Sounds great on guitar.

Power: Dunlop ECB003 AC Adapter or Single 9 volt battery (not included)

Get your MXR M87 Bass Compressor today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Bass Effect Pedal

great purchase


great compressor it is a great pedal!!!!



Works as intended


Easy to set up, sounds good.



Great pedal


Great sounding pedal! Really solid compressor.



Glad I bought the M87 and would do it again


This compressor pedal does exactly what I wanted. I wanted a compressor that didn't color my sound and the M87 delivered what I was looking for. It adjusts easily and the visual readout is a great help. Like many compressors you don't notice the effect it's having balancing note volume when playing alone. Playing with others in a band setting is another story, and the story is a good one!



Best bass compressor


Best bass compressor pedal I have tried. Does the job without sounding compressed



I would consider picking up another for my guitar.


It really helps even out the brightness of roundwounds, great on guitar too.



Amazing Pedal. Works better than I could have imagined


I was looking to upgrade my pedal board and needed a compressor that was not only versatile and easy to use but top quality in both construction and performance. This pedal has more than exceeded my expectations. I spent weeks reading reviews of countless different options. I watched so many different videos it would have been easy to get lost in the various different opinions. one pedal that kept coming up near the top of the list was the MXR M87. I was in Houston and stopped by Sam Ash after seeing they actually had one in stock and bought it. took it home set up the new pedal board and started playing with the settings. after an hour or so getting everything set and adjusted it was easy to see how amazing this pedal really was. I kept playing and switching it on and off and the difference with every other pedal was immediately noticeable. It evened out the tone without adding any notable squashing added sustain and in general tied everything together. I have this first in my chain followed by a green BigMuff, a Boss ODB3 Overdrive, Boss GEB7 EQ, a DigiTech CabDry VR Cab Simulator into a ART Studio V3 Tube Preamp which I also use as a DI. The M87, EQ and Tube Preamp are always on and I will switch The BigMuff and Boss OD depending on the song. I couldn't be happier with the way the Compressor preforms. It truly makes my setup work. I highly Recommend this to anyone wanting to add consistency and even tone.



Great Control of Bass Tune


Bass guitar is a monster of an instrument to control so finding a pedal that lets you tame this beast is great. The MXR M87 does just that. This 5 knob pedal allows you to adjust the sound and tone of your bass without losing any of the soul of the bass. Also works great with guitars.


Edison, NJ

another hit from MXR


MXR has been around for a few decades and many of their pedals have become icons in the industry. This new bass compressor is a welcome addition to the family. The range of tones available range from barely there transparent to the classic squashed effect. As with all MXR pedals I've used it's very simple to dial in, inspiring to play, and built to last. If you're a bassist looking for a compressor tailored for you check out this cool MXR pedal today.

Nate McClure

Cincinatti, OH


its true bypass!!!!


I play bass and am always on the constant lookout for good compressors and subtle effects. I decided to try this not only because I am always on the hunt, but it is an MXR and they have always been good. I love this and soon it may be replacing the one I have in my rig. The headroom circuit adds a bit of crispness to the sound and it doesn't feel squished at times. The other great thing is that it is true bypass, so when it is off...it's off when doesn't effect my tone like other pedals.

Lee @ Sam Ash Cincinnati



M87 Bass Compressor Effects Pedal

4.9 10


Series Compressor
Model M87

MXR Bass Compressor Manual

Warranty Info:

M87 Bass Compressor Effects Pedal

The manufacturer's warranty covers parts for one year and labor for one year from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.