Pricing and availability

We compare 600+ stores and found this item at 7 stores. Prices updated .

Sweetwater
4.5 (62)
$209.99
Guitar Center
4.5 (18)
$209.99
Amazon
4.6 (411)
$209.99 New
$188.79 Used (Like New)
Reverb
5.0 (52)
$189.99 New
$129.00 Used
Musician's Friend
4.0 (19)
$209.99
Thomann
4.7 (221)
$198.00 $195.00 $3.00 · All time low
Gear4Music
£219.00

Average Price: $193

Standard/Professional

$70

$201+

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Standard

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Price History

Based on price data from 4 merchants for "MXR M87 Bass Compressor". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Take your bass tones to the next level with the MXR M87 Bass Compressor, a pedal that packs studio-quality compression into a compact, road-ready format. This pedal does more than just tighten up your sound - it offers complete control over your tone, allowing you to shape it to your exact requirements.

The M87 Bass Compressor features Attack, Release, Ratio, Input, and Output controls, granting you the power to achieve everything from subtle peak limiting to all-out squash. The standout feature is the Constant Headroom Technology (CHT) which ensures maximum headroom and crystal-clear sound quality, allowing your full dynamic range to shine through until your signal reaches the compression threshold.

The pedal's unique 10-segment LED gain-reduction meter offers a highly visible, intuitive way to dial in your sound. And with True Bypass switching, your tone remains pristine when the pedal is switched off. Built with a rugged metal housing, this pedal is designed to withstand the rigors of touring and frequent use.

Key Features:

  • Studio-quality compression in a compact, durable stompbox
  • Full control over your tone with Attack, Release, Ratio, Input, and Output controls
  • Constant Headroom Technology (CHT) for maximum headroom and clear sound quality
  • 10-segment LED gain-reduction meter for easy sound dialing
  • True Bypass switching maintains your tone when the pedal is off
  • Rugged metal housing built for durability and longevity
  • Powered by 9V battery or Dunlop ECB-003 AC adapter (sold separately)

Product 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" (including knobs)
Width 2.62" (including jacks)
Depth 4.37"
Weight 0.56 lbs.

FAQs

What type of compression does the MXR M87 Bass Compressor provide?

The MXR M87 Bass Compressor offers transparent compression, allowing you to retain your bass's natural tone while controlling dynamics effectively.

Does the MXR M87 Bass Compressor work well with active basses?

Yes, the MXR M87 Bass Compressor is designed to work well with both passive and active basses, providing consistent performance across different pickup types.

How does the MXR M87 Bass Compressor handle dynamic range?

The MXR M87 features a built-in CHT Constant Headroom Technology, which provides plenty of headroom and ensures that your dynamic range is preserved without unwanted distortion.

Is the MXR M87 Bass Compressor easy to use for beginners?

Yes, the MXR M87 Bass Compressor is user-friendly with its intuitive controls, making it accessible for both beginners and experienced bass players seeking to refine their sound.

What power supply does the MXR M87 Bass Compressor require?

The MXR M87 Bass Compressor requires a 9V DC power supply, which is sold separately, or it can be powered by a 9V battery.

Does the MXR M87 Bass Compressor have true bypass switching?

Yes, the MXR M87 Bass Compressor features true hardwire bypass switching, ensuring that your signal remains unaffected when the pedal is turned off.

jimdunlopusa

jimdunlopusa

MXR Bass Compressor: Darryl

Video thumbnail for MXR Bass Compressor: Darryl by jimdunlopusa

MXR Bass Compressor: Darryl

jimdunlopusa

jimdunlopusa

Video thumbnail for MXR M87 BASS COMPRESSOR by BassTheWorld.com

MXR M87 BASS COMPRESSOR

BassTheWorld.com

BassTheWorld.com

Video thumbnail for SCALE THE SUMMIT - How To Properly Use Compressors on Bass Guitar with Mark Michell | GEAR GODS by Trey Xavier

SCALE THE SUMMIT - How To Properly Use Compressors on Bass Guitar with Mark Michell | GEAR GODS

Trey Xavier

Trey Xavier

Video thumbnail for MXR M87 Bass Compressor - Sound test/Review by Tsunami Red

MXR M87 Bass Compressor - Sound test/Review

Tsunami Red

Tsunami Red

Video thumbnail for MXR M87 Bass Compressor MXR M87 Bass Compressor Demo Review by GAK

MXR M87 Bass Compressor MXR M87 Bass Compressor Demo Review

GAK

GAK

Video thumbnail for MXR M87 Bass Compressor Pedal Review by Rumblin Man

MXR M87 Bass Compressor Pedal Review

Rumblin Man

Rumblin Man

Video thumbnail for MXR - M87 Bass Compressor by Bass Stuff

MXR - M87 Bass Compressor

Bass Stuff

Bass Stuff

Reviews

PROS

  • Offers precise control over compression settings

  • Transparent compression doesn't alter the original tone

  • Durable build quality with solid connections and metal knobs

  • LED display aids in setting up and visualizing gain reduction

  • Versatile for different playing styles and techniques

  • True bypass ensures signal integrity when the pedal is off

  • Priced competitively, offering great value for its features

  • Compact size for pedalboard efficiency

  • Works well with both bass and guitar, enhancing clarity and control

  • Mimics high-end studio compressors like the UREI 1176 in pedal form

CONS

  • Requires a hot signal for optimal performance, not suited for all basses

  • Learning curve due to multiple controls and settings

  • Attack and release controls have limited effectiveness for some users

  • Produces noticeable self-noise at high output gain settings

  • Lacks a continuous sweep for the ratio control for finer adjustments

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about MXR M87 Bass Compressor.

Features and functionality

  • The input knob is highly sensitive; careful adjustment is crucial for desired compression levels, especially on a 4:1 ratio setting.

    Source
  • The MXR M87 has a fixed threshold; the input knob adjusts how hard the signal hits the compressor, affecting its responsiveness.

    Source
  • The M87 lacks features like a High Pass Filter and blend knob, which are present in the Empress Bass Compressor, enhancing its versatility for parallel compression.

    Source

Comparisons

  • The MXR M87 is likened to an 1176 compressor in terms of configuration, but some users find it less intuitive compared to optical compressors like the LA-2A.

    Source
  • The MXR M87's LED meter provides visual feedback on compression levels, aiding users new to compression in setting the pedal correctly.

    Source
  • Alternatives such as the Ampeg OptoComp are noted for those preferring optical compression, highlighting personal preference in compressor type.

    Source
  • The Empress Bass Compressor offers a mid switch and a variable HPF, providing more tonal options compared to the M87.

    Source

Use cases and applications

  • The M87 can be particularly effective when used with a High Pass Filter (HPF) in front, especially for basses with pronounced low frequencies.

    Source
  • Transparent compression allows for subtle leveling, ideal for players switching between different playing styles like plucking and slapping.

    Source
  • It's possible to use two compressors in a signal chain, one at the beginning for input control and another at the end to ensure a peak-less signal to the amp or FOH.

    Source

Setup and maintenance

  • It's noted that the meter's green light indicates reasonable compression, with increased levels acting as a limiter effect.

    Source

User experience

  • Some users experience extreme compression settings, describing the effect as like "trying to run in a swimming pool," indicating a potential steep learning curve.

    Source
  • Some owners recommend initially using heavy compression to understand the pedal's effect, then dialing it back for subtle adjustments.

    Source
  • Some users find the M87 overly aggressive, describing it as "grabby," which can lead to situations where the output is unexpectedly low.

    Source
  • Users new to compression appreciate the Empress's metering and blend features, making it easier to understand and adjust compression effects compared to the HX Stomp.

    Source

Mods and upgrades

  • A suggestion includes using a sidechain input with a High Pass Filter for better compression control, particularly with vintage-style P-basses.

    Source

Critic Reviews

MXR M87 Bass Compressor Pedal Review - Premier Guitar

premierguitar.com

The MXR M87 Bass Compressor impresses with its transparency and flexibility, offering essential controls like threshold, attack, release, ratio, and gain, plus a handy gain-reduction meter. While it requires a bit more setup than simpler models, it avoids the pitfalls of adding noise or overly squishing the sound. Its compact size and sturdy design are perfect for pedalboard-conscious musicians. However, the battery compartment is cumbersome, and some may desire more variable ratios for limiting. Overall, it's a top choice for bassists seeking a reliable pedal without lugging a rack unit.

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5.0 out of 5

Based on 19 Reviews and 114 Ratings

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yapoomarket

one classic gear . primary, basic, fundamentall

If you want a typcal good bass compression this gear is essential

Genres:
From Gear Setup
nickgrooves

The best [pedal] compressor ever, my secret weapon?

I noticed the M87 on some of the guitar boards in Voodoo Labs' product videos. I decided to give it a try. After all, plenty of [good] history of guitarists using bass amps and effects. And I was already using the MXR Super Comp, so switching to another MXR didn't feel too risky. Well, this is by far a superior product. I'm not technical enough to explain why, but it sounds and feels amazing. Huge step up.

silvercult

Not glamorous, but oh so useful.

This pedal does the job that it intends to flawlessly. It is very very “malleable”, meaning that you can truly get whatever sort of compression you want from it. I am very impressed.

mattiasstynen

1176 in a box

MXR must really love the old UREI 1176 devices used in studio's worldwide. Because this is exaclty that, but in a stompbox. Works great for both guitar and bass. Love it!

amaury_the_french

Great compressor !

Super bass compressor. It gets the job done !

ivanpellicciotti

Nice compressor

I wanted to have a like-a-rack compressor in my pedalboard, so I took this MXR compressor. It does a nice job!

luis_carballo_caycedo

Transparent

The choice if you're looking a compressor that doesn't change your tone.

From Gear Setup
mancio_23

cool with bass ang guitars

Cool! I really like it with Electric and Acoustic guitars. Same exactly thing as the new Studio Compressor

ron226

MXR M87 Bass Compressor Marcus Miller Signature

MXR M87 Bass Compressor Marcus Miller Signature

Artist usage

Add artist
See how Eric Johnson uses MXR M87 Bass Compressor

Eric Johnson

Singer, Guitarist

The G3 Jam

...
Verified via YouTube

Johnson uses an MXR Bass Compressor pedal for his acoustic signal. "It's a copy of an LA2A compressor, and that works real good on the Fishman Piezo...I'm liking that," he said at (7:00).

See how Marty Friedman uses MXR M87 Bass Compressor

Marty Friedman

Guitarist

Megadeth

...
Verified via Photo

The rig my tech Alan Sosa put together for the US tour. Simple and solid, just the way I like it. ????????????????????????????

See how Marcus Miller uses MXR M87 Bass Compressor

Marcus Miller

Bassist, Composer

Scritti Politti

...
Verified via YouTube

At 4:10, Marcus says that he uses the MXR bass compressor. He says that he use it as a limiter and because it gives him more sustain.

See how Davie504 uses MXR M87 Bass Compressor

Davie504

Bassist

...
Verified via YouTube

At 0:34 Davie teach how to plug your bass into a compressor pedal (MXR M87) in order to get a good bass tone.

See how Billy Sheehan uses MXR M87 Bass Compressor

Billy Sheehan

Guitarist, Bassist

UFO

...
Verified via YouTube

"These are wonderful...They sound great," Billy Sheehan says, about his MXR M87, at 5:55 in this rig rundown video.

See how John Myung uses MXR M87 Bass Compressor

John Myung

Bassist

Dream Theater

...
Verified via MusicRadar

I had an MXR compressor and.. which gave the sound that 'fire' that I was talking about earlier.

See how Yvette Young uses MXR M87 Bass Compressor

Yvette Young

Singer, Guitarist

Covet

...
Verified via Photo

In this photo, featuring Yvette Young and the pedals she used for her latest album, the MXR M87 Bass Compressor can be spotted on her board.

See how Nate Mendel uses MXR M87 Bass Compressor

Nate Mendel

Bassist

Foo Fighters

...
Verified via Photo

In a photograph shared by Darkglass on their Facebook account, Nate Mendel can be seen using the MXR M87 Bass Compressor.

See how Alex Venturella uses MXR M87 Bass Compressor

Alex Venturella

Guitarist, Bassist

Slipknot

...
Verified via Photo

In this photo taken directly from Alex Venturella's instagram, is a full view of Slipknot's newest bassist's pedal shelves. In the middle is a bright white pedal with 5 black knobs, this is the MXR M87 Bass Compressor Bass Effects Pedal.

See how Adam Neely uses MXR M87 Bass Compressor

Adam Neely

Bassist, Keyboardist

Sungazer

...
Verified via YouTube

In this gig vlog, from 5:00 to 5:20, he runs through his pedalboard.

See how Juan Alderete uses MXR M87 Bass Compressor

Juan Alderete

Bassist

Marilyn Manson

...
Verified via YouTube

For Deltron 3030's 2014 tour, Alderete built a fly rig with the compressor being used in conjunction with his Endangered Audio delay. At 3:06, Alderete explains that it's used so the delay repeats stay quiet when going into regeneration.

See how Clay Gober uses MXR M87 Bass Compressor

Clay Gober

Bassist

Polyphia

...
Verified via YouTube

At 1.22 you can see he uses this pedal

Album Usage

The MXR M87 Bass Compressor has been featured on the following albums:

Used With

Based on how musicians on Equipboard use MXR M87 Bass Compressor, it is most commonly used with the following gear.

Community setups

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3ipol

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Gear IQ 463

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Gear IQ 1370

raphbass

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Gear IQ 4923

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Gear IQ 196

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finnsmithmusic_

Gear IQ 196

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Gear IQ 571

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smo

Gear IQ 171

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luis_carballo_caycedo

Gear IQ 321

cursefolk

cursefolk

Gear IQ 274

rolf_martin_haldorsen

rolf_martin_haldorsen

Gear IQ 167

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jackgooginss

Gear IQ 379

parhelia_0000

parhelia_0000

Gear IQ 10745

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eduardotanimura

Gear IQ 328

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Gear IQ 1370

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voooodoooo

Gear IQ 56

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Gear IQ 148

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Gear IQ 72

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Gear IQ 164

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pitchy

Gear IQ 387

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rmoreno

Gear IQ 83

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marcelo_carboni

Gear IQ 1370

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adriancalimang

Gear IQ 124

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