Pricing and availability

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Sweetwater
4.5 (66)
$99.99
Guitar Center
4.0 (28)
$99.99
Amazon
4.7 (687)
$99.99 New
$87.99 Used (Like New)
Reverb
5.0 (112)
$70.00 New
$49.00 Used
Musician's Friend
4.0 (129)
$99.99
zZounds
5.0 (4)
$99.99
Thomann
4.5 (345)
$107.00 $105.00 $2.00 · All time low

Average Price: $90

Standard/Professional

$50

$201+

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Price History

Based on price data from 6 merchants for "MXR M102 Dyna Comp". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Introduce yourself to the iconic MXR M102 Dyna Comp, a compressor pedal that's been a cornerstone of professional guitar rigs around the globe. This versatile effects pedal is brought to you by Dunlop and offers a simple yet potent way to add sustain to solos, even out volume levels, or create a distinctive percussive "click" for clean rhythm tones.

With just two user-friendly controls—Sensitivity and Output—you can precisely dictate the amount of compression and output level. This pedal is powered by either a 9V battery or optional AC adapter, promising an ultra-clean compression effect devoid of noise. The MXR Dyna Comp is appreciated for its ability to produce infinite sustain and dynamically shape your tone. It achieves this through an exclusive limiter circuit that adjusts the gain to keep your output signal constant.

In addition to enhancing sustain, the MXR Dyna Comp can produce a signature "clicky" clean tone when cranked up, a sound that has graced countless pop and rock hits. With its compact housing and straightforward operation, the MXR Dyna Comp fits comfortably on any pedalboard and is a favorite among guitarists of all genres.

Key Features:

  • Proprietary limiter circuit for constant output signal
  • Two user-friendly controls: Sensitivity and Output
  • Produces a signature "clicky" clean tone
  • Durable die-cast chassis for stable operation
  • Powered by a 9V battery or optional AC adapter
  • Renowned for its ability to produce infinite sustain
  • Compact design suitable for any pedalboard

Product specs

Brand MXR
Model M-102 Dyna Comp
Finish Red
Year 1995 - 2025
Made In United States
Categories Compressor Pedals
Pedal Format Standard

FAQs

What is the primary function of the MXR M102 Dyna Comp Compressor Pedal?

The MXR M102 Dyna Comp Compressor Pedal is designed to tighten your guitar signal, enhance sustain, and create a percussive, clicky sound often heard in classic recordings.

Does the MXR M102 Dyna Comp work well with bass guitars?

While primarily designed for electric guitars, the MXR M102 Dyna Comp can be used with bass guitars, although it may not retain the low-end integrity as effectively as bass-specific compressors.

What power supply options are compatible with the MXR M102 Dyna Comp?

The MXR M102 Dyna Comp can be powered by a 9-volt battery or a Dunlop ECB003 9-volt adapter. It is also compatible with the DC Brick™, Iso-Brick™, and Mini Iso-Brick™ power supplies.

How does the MXR M102 Dyna Comp affect guitar tone?

The MXR M102 Dyna Comp enhances your guitar tone by adding sustain and compressing the signal, resulting in a tighter sound with more presence and clarity.

Is the MXR M102 Dyna Comp suitable for live performances?

Yes, the MXR M102 Dyna Comp is suitable for live performances, providing consistent compression and sustain to help your guitar stand out in a mix.

ProGuitarShopDemos

ProGuitarShopDemos

MXR Dyna Comp Compressor Pedal

Video thumbnail for MXR Dyna Comp Compressor Pedal by ProGuitarShopDemos

MXR Dyna Comp Compressor Pedal

ProGuitarShopDemos

ProGuitarShopDemos

Video thumbnail for How David Gilmour Uses Stacked Compression by Michael Banfield

How David Gilmour Uses Stacked Compression

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Michael Banfield

Video thumbnail for MXR Dyna Comp Compressor by jimdunlopusa

MXR Dyna Comp Compressor

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jimdunlopusa

Video thumbnail for MXR Dyna Comp Compressor Guitar Pedal Demo by World Music Supply

MXR Dyna Comp Compressor Guitar Pedal Demo

World Music Supply

World Music Supply

Video thumbnail for 5 Minutes with the MXR Dyna Comp - Pedal Demo by Ryan Kiesshauer

5 Minutes with the MXR Dyna Comp - Pedal Demo

Ryan Kiesshauer

Ryan Kiesshauer

Video thumbnail for MXR / M102 Dyna Comp ダイナコンプ【デジマート製品レビュー】 by digimartnet

MXR / M102 Dyna Comp ダイナコンプ【デジマート製品レビュー】

digimartnet

digimartnet

Video thumbnail for MXR M102 Dyna Comp Compressor Pedal Demo - Sweetwater Sound by Sweetwater

MXR M102 Dyna Comp Compressor Pedal Demo - Sweetwater Sound

Sweetwater

Sweetwater

Video thumbnail for コンプレッサー踏んでみました!MXR「 Dyna Comp 」のご紹介!! by 西尾知矢

コンプレッサー踏んでみました!MXR「 Dyna Comp 」のご紹介!!

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西尾知矢

Video thumbnail for MXR Dyna Comp Pedal Review by Devan Bishop

MXR Dyna Comp Pedal Review

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Video thumbnail for 佐橋佳幸が長年愛用してきたMXR Dyna Comp!! by SHINOS AMPLIFIER COMPANY

佐橋佳幸が長年愛用してきたMXR Dyna Comp!!

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SHINOS AMPLIFIER COMPANY

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MXR Dyna Comp Review - Best Compressor Pedal

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Music Gear Reviewed

Video thumbnail for MXR dyna comp Review by rthre ryhawe

MXR dyna comp Review

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rthre ryhawe

Video thumbnail for How to use the MXR Dyna Compressor by Andrei Martinez Agras

How to use the MXR Dyna Compressor

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Andrei Martinez Agras

Video thumbnail for How to Use the MXR Dyna Comp! by Jack Fossett

How to Use the MXR Dyna Comp!

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Jack Fossett

Video thumbnail for MXR Dyna Comp | Reverb Demo Video by Reverb

MXR Dyna Comp | Reverb Demo Video

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Reverb

Video thumbnail for MXR Dyna Comp Bass Demo by The Bass Channel

MXR Dyna Comp Bass Demo

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The Bass Channel

Video thumbnail for ギターレッスン【MXR dyna compのご紹介】これぞ王道コンプ!! by 瀧澤克成

ギターレッスン【MXR dyna compのご紹介】これぞ王道コンプ!!

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Video thumbnail for John Frusciante Using The MXR Dyna Comp - Live Examples by Justin Jeske

John Frusciante Using The MXR Dyna Comp - Live Examples

Justin Jeske

Justin Jeske

Video thumbnail for MXR Dyna Comp Demo - Andor Osztrogonac by Andor Osztrogonac

MXR Dyna Comp Demo - Andor Osztrogonac

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Andor Osztrogonac

Video thumbnail for MXR M-102 Dyna Comp Compressor Pedal Video Demo by tunnelvisionmusic

MXR M-102 Dyna Comp Compressor Pedal Video Demo

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tunnelvisionmusic

Video thumbnail for MXR M102 Dyna Comp Compressor Pedal Demo & Review by The Gear Cage

MXR M102 Dyna Comp Compressor Pedal Demo & Review

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The Gear Cage

Video thumbnail for MXR Dyna Comp on BASS by Bart FUNK Bass

MXR Dyna Comp on BASS

Bart FUNK Bass

Bart FUNK Bass

Video thumbnail for MXR Dyna Comp by Jack Fossett

MXR Dyna Comp

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Jack Fossett

Video thumbnail for DYNA COMP MXR ! ENORME VALEUR SURE ... by OLD MAN PHIL BALINT

DYNA COMP MXR ! ENORME VALEUR SURE ...

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Video thumbnail for MXR M102 Dyna Comp Demo - Harmon Music - HIGH DEFINITION by Harmon Music

MXR M102 Dyna Comp Demo - Harmon Music - HIGH DEFINITION

Harmon Music

Harmon Music

Video thumbnail for MXR dyna comp comparison ('81 Vintage, 90's Reissue, Current Script Reissue) by JAM's Factory 1996

MXR dyna comp comparison ('81 Vintage, 90's Reissue, Current Script Reissue)

JAM's Factory 1996

JAM's Factory 1996

Reviews

PROS

  • Adds significant sustain, useful for solos

  • Boosts volume for leads effectively

  • Simple to use with minimal controls

  • Enhances clean tones remarkably well

  • Tightens rhythm playing and arpeggios

  • Versatile across genres, from metal to country

  • Can improve tone quality when used correctly

  • Provides a noticeable improvement in sound even with minimal settings

  • Works well with both distortion and clean settings

  • Preferred over other compressors for its unique sound

CONS

  • Lacks an attack control for more nuanced dynamics

  • May not be compatible with all fuzz pedals

  • Might be too simple for those seeking more control

  • Introduces noise, especially through dirty amps

  • Adds "white noise" to the signal chain

  • The casing on newer models may feel less robust

  • Can cut power and dull dynamics if not used carefully

  • Some find it too noisy without a noise gate

  • Limited functionality with bass guitar

  • Can overly color the tone, affecting clarity

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about MXR M102 Dyna Comp.

Use cases and applications

  • Owners use the Dyna Comp on bass to even out sound and cover technique issues; works well for clean guitar tones like "Under the Bridge."

    Source
  • Combining high sensitivity settings with a clean signal can create a thick, dynamic sound with both compressed and uncompressed tonal qualities.

    Source

User experience

  • Older models, like those from the late '70s, are noted for their reliability but require battery power, which some users find inconvenient.

    Source
  • Some users prefer knob settings at 3:00/9:00, which suggests a unique personal preference for achieving desired tone.

    Source
  • Some owners note that the Dyna Comp adds a "color" to the tone, which may not be ideal if a transparent compressor sound is desired.

    Source

Features and functionality

  • Running sensitivity low and output high thickens clean tones without noticeable compression, according to user reports.

    Source
  • A popular setting among users is having the output at unity and sensitivity all the way down, balancing volume without compression.

    Source
  • Some users experience radio interference with the pedal, suggesting it may amplify unwanted signals.

    Source
  • The Dyna Comp is known to alter the phase of the signal, which can be corrected using a signal blender like the OBNE Signal Blender.

    Source

Mods and upgrades

  • The Ross Mod is a popular modification among long-term users, enhancing the pedal's compression effect.

    Source
  • Some clones of the Dyna Comp, such as the BYOC "lil comp," include an internal trim pot to adjust the compression ratio, offering more control over the sound.

    Source

Comparisons

  • The pedal's clone, the BYOC "lil comp," is noted to have similar features to the classic Dyna Comp, with the addition of an internal trim pot for compression ratio control.

    Source

Critic Reviews

How the MXR Dyna Comp became the go-to compressor pedal for countless all-star guitarists | Guitar World

guitarworld.com

The MXR M102 Dyna Comp stands as a classic choice for guitarists seeking professional-grade compression without the studio price tag. Praised for its fast attack and unique "squashed" sound, this pedal is a staple for players like Andy Summers and Yngwie Malmsteen. Its ability to smooth out sound while adding a distinct midrange boost makes it ideal for various styles, from country to funk. However, its operation leans more towards limiting than true compression, which might not suit everyone's taste. Overall, the Dyna Comp is celebrated for its reliability and versatility, making it a beloved tool for many.

positive
Add

4.5 out of 5

Based on 53 Reviews and 338 Ratings

5 star
4 star
3 star
2 star
1 star
thecloud9th

basic and outdated

its not bad, i just think its not worth that much money plus its pretty old. way better options there, good clones too.

derrick_j_lugo

The GOAT of squeeze

Had to let go of my TC Electronics Hyper Gravity comp. The digital nature of that pedal started giving me issues on my board (it was mainly a power consumption thing). Ended up trading it in for an MXR Dyna Comp at Bills Music and I legit could not be happier. It color's your tone but in a real classy kind of way. My cleans are even and having it in the chain before my drives makes the overdrives on my board stand out and sound more musical. Can't recommend it enough, it's dead simple to use and works in a variety of genre's. If it's good enough for most professional country players, Steely Dan, Gilmore and Eddie Van Halen (just to name a few), it's good enough for most guitarists in almost every genre.

zaza_3121

MXR Squishy Comp

I have a love/hate relationship with this compressor - it sucks the high frequencies from your tone, but it gives you that infamous squish that you've heard on all classic records. On clean, you sound like Chic. If you use it before your OD's, it pushes them a little bit more just like a boost and when you place it after OD's, it keeps overall volume just fine (but as mentioned before - it sucks some of your highs).

Build quality is great and I prefer it's switch more than on any EHX pedal.

Preferred Settings + Usage:

Output - 3:00, sustain 9:00

From Gear Setup
braedencarroll

Best Cheap Compressor

As far as standard compressors that you can find commonly under $100, this will be the best bang for your buck. Nothing fancy, but has a nice dynamic range and is super durable,

kantankerous368

Perfect

If you're trying to compress your sound, get this pedal. It's not a rackmount or some huge studio compressor; this does the same thing.

mattia_mancini

Ottimo

Ottimo compressore per chitarra, generalmente lo utilizzo con un settaggio leggero per accentuare le distorsioni (in pedaliera sta pre Ds-2) ma ogni tanto è anche divertente esagerare con la comp per tirare fuori quel sound caratteristico stile "Under the Bridge".

jimmarchi1

can't beat it with a stick, but you can with a Ross

I recently bumped into my block logo, 90s dynacomp while cleaning up my gear closet. I was looking for my SD1 and BF2 (not sure if I sold them) and found this gem instead. I was really into this pedal at a couple periods of my playing career. Great lead boost into a slightly dirty amp, the extra sustain allows you to play with a little less gain when using a strat and the midrange presence lift really helps cut a mic. Great into a clean fender for chiken pickin' Dare I add this to my board again? Maybe with analog chorus? How 80s of me!

But yeah, if you want classic guitar compression that's not studio grade and just does its thing? this is a great place to start. It colors your tone, but that's the point. Great in a dense band mix. They say the script logo is better but I could never hear a substantial difference. A grey Ross definitely sounds better without adding a bunch of features like booooo-teek versions. Set and forget squash that used to be one of the few pedals I couldn't do without in the recording studio. I am really inspired to plug this in again after replying to a compressor thread in the guitar forum! Everyone should have this or a boss compressor around. They are cheap enough.

From Gear Setup
herkkupeppukaunotar

Simple, straightforward and suprisingly versatile.

I love everything about this pedal. Works especially good on producing that punchy and sparkly jangle sound.

cammojodragon

Exactly what you expect

Say what you will of the Dyna Comp, it certainly can't be accused of not having enough compression; I've never had the sensitivity up beyond 1/2 o'clock, which is plenty heavy compression. Setting the output to a little above unity allows you to get a decent clean boost out of the pedal, and even with the sensitivity dialled way back, you get that satisfying pop of the note for all your country needs, and a sweet, natural sounding sustain. I use mine in front of a Soul Food and a Custom Badass '78, and the Dyna Comp gets a smooth crunch out of the Soul Food, and gives the C' Badass the sweet sustain the pedal somewhat lacks on its own. My one gripe is that the perfect compression setting for the higher strings/notes will really muddy the lower notes at times, although I imagine that's true of most compressors. Still, it's one of the cheaper compressors on the market, and I still highly recommend it!

davepepper

It works .... but

I'm using this as the first pedal in my setup and it's a bit disappointing to have to put a noise gate right after it. Compression functionality is pretty good but it's quite noisy, even with guitars I have that don't hum very much. Can't blame my Carl Martin switching power supply for this.

Artist usage

Add artist
See how John Frusciante uses MXR M102 Dyna Comp

John Frusciante

Guitarist

Red Hot Chili Peppers

...
Verified via Photo

Used on Blood Sugar Sex Magik, John used the Dyna Comp on the solo of "Mellowship Slinky in B Major" and for the intro of "Under The Bridge" and if you go on YouTube and look up "John Frusciante recording Mellowship slinky in B Major solo" you can see it by his right knee next to the time.

You can see this pedal featured in the new setup of RHCP for Unlimited Love Tour.

See how David Gilmour uses MXR M102 Dyna Comp

David Gilmour

Guitarist

Pink Floyd

...
Verified via YouTube

A Compression Pedal used by David Gilmour used in the Pink Floyd albums-Animals,The Wall,The Final Cut,The Division Bell and in Pulse

See how Kevin Parker uses MXR M102 Dyna Comp

Kevin Parker

Singer, Guitarist

Tame Impala

...
Verified via Photo

Kevin is seen sitting in front of his pedal board, and the MXR M-102 Dyna Comp Compressor Pedal is toward the middle in front of his right leg.

See how Billie Joe Armstrong uses MXR M102 Dyna Comp

Billie Joe Armstrong

Singer, Guitarist

Green Day

...
Verified via Photo

In this photo, which was uploaded on Instagram by Billie Joe Armstrong, the MXR Dyna Comp pedal is visible.

See how Jonny Greenwood uses MXR M102 Dyna Comp

Jonny Greenwood

Guitarist

Radiohead

...
Verified via Photo

The MXR Dyna Comp is visible in a photo of Jonny’s guitar board at Philadelphia’s Franklin Music Hall on 8 July 2023, as indicated on this King of Gear post.

See how George Harrison uses MXR M102 Dyna Comp

George Harrison

Singer, Guitarist

The Beatles

...
Verified via Bekkoame

During the 1991 Japan tour with Eric Clapton, George Harrison used the MXR M102 Dyna Comp, as documented by Bekkoame.

See how Noel Gallagher uses MXR M102 Dyna Comp

Noel Gallagher

Guitarist, Singer

Oasis

...
Verified via Photo

In this user-uploaded photo, Noel Gallagher is shown using the MXR M102 Dyna Comp compressor pedal.

See how The Edge uses MXR M102 Dyna Comp

The Edge

Guitarist

U2

...
Verified via Photo

The Edge acquired a vintage MXR M102 Dyna Comp, identifiable by its block logo, in the early 1980s, as seen in a user-uploaded photo from A2athot.

See how Cliff Burton uses MXR M102 Dyna Comp

Cliff Burton

Bassist

Metallica

...
Verified via Amazon

page 110-111 of "To Live Is To Die" book stated he used this along with his Morely fuzz wah

by John Marshall "He used to like getting different sounds: the power fuzz wah, and he had a red compressor that he used on the solo.

See how Adam Jones uses MXR M102 Dyna Comp

Adam Jones

Guitarist, Keyboardist

Tool

...
Verified via YouTube

In this video from DunlopTV, Bryan speaks with Chris "Frank" Leahey, Adam's guitar tech. At 1:28 we can see Adam's MXR Dyna Comp which "adds a little more sustain" when used in conjunction with Adam's Talk Box.

See how Joe Satriani uses MXR M102 Dyna Comp

Joe Satriani

Guitarist

Mark Knopfler’s Guitar Heroes

...
Verified via Satriani

In 2003 he used Dyna Comp, block logo.

See how Ed O'Brien uses MXR M102 Dyna Comp

Ed O'Brien

Singer, Guitarist

Radiohead

...
Verified via Photo

Guitar -> Boss TU2 - MXR DynaComp - Ibanez TS808 Tubescreamer - Crowther Hotcake - Cry Baby Wah - Boss DD5 (with Boss FS-5U footswitch for tap-tempo) - Digitech Whammy IV - Line 6 DL4 - EHX Deluxe Memory Man - Ernie Ball VP Jr -> Amp

Used With

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