Pricing and availability
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Average Price: $90
Standard/Professional
$50
$201+
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Budget
Standard
High-end
Price History
Based on price data from 5 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
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What is the primary function of the MXR M102 Dyna Comp Compressor Pedal?
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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.
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Does the MXR M102 Dyna Comp work well with bass guitars?
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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.
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What power supply options are compatible with the MXR M102 Dyna Comp?
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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.
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How does the MXR M102 Dyna Comp affect guitar tone?
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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.
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Is the MXR M102 Dyna Comp suitable for live performances?
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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.
Videos
ProGuitarShopDemos
MXR Dyna Comp Compressor Pedal
MXR Dyna Comp Compressor Pedal
ProGuitarShopDemos
How David Gilmour Uses Stacked Compression
Michael Banfield
MXR Dyna Comp Compressor
jimdunlopusa
MXR Dyna Comp Compressor Guitar Pedal Demo
World Music Supply
5 Minutes with the MXR Dyna Comp - Pedal Demo
Ryan Kiesshauer
MXR / M102 Dyna Comp ダイナコンプ【デジマート製品レビュー】
digimartnet
MXR M102 Dyna Comp Compressor Pedal Demo - Sweetwater Sound
Sweetwater
コンプレッサー踏んでみました！MXR「 Dyna Comp 」のご紹介！！
西尾知矢
MXR Dyna Comp Pedal Review
Devan Bishop
佐橋佳幸が長年愛用してきたMXR Dyna Comp！！
SHINOS AMPLIFIER COMPANY
MXR Dyna Comp Review - Best Compressor Pedal
Music Gear Reviewed
MXR dyna comp Review
rthre ryhawe
How to use the MXR Dyna Compressor
Andrei Martinez Agras
How to Use the MXR Dyna Comp!
Jack Fossett
MXR Dyna Comp | Reverb Demo Video
Reverb
MXR Dyna Comp Bass Demo
The Bass Channel
ギターレッスン【MXR dyna compのご紹介】これぞ王道コンプ！！
瀧澤克成
John Frusciante Using The MXR Dyna Comp - Live Examples
Justin Jeske
MXR Dyna Comp Demo - Andor Osztrogonac
Andor Osztrogonac
MXR M-102 Dyna Comp Compressor Pedal Video Demo
tunnelvisionmusic
MXR M102 Dyna Comp Compressor Pedal Demo & Review
The Gear Cage
MXR Dyna Comp on BASS
Bart FUNK Bass
MXR Dyna Comp
Jack Fossett
DYNA COMP MXR ! ENORME VALEUR SURE ...
OLD MAN PHIL BALINT
MXR M102 Dyna Comp Demo - Harmon Music - HIGH DEFINITION
Harmon Music
MXR dyna comp comparison ('81 Vintage, 90's Reissue, Current Script Reissue)
JAM's Factory 1996
Reviews
PROS
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Adds significant sustain, useful for solos
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Boosts volume for leads effectively
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Simple to use with minimal controls
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Enhances clean tones remarkably well
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Tightens rhythm playing and arpeggios
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Versatile across genres, from metal to country
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Can improve tone quality when used correctly
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Provides a noticeable improvement in sound even with minimal settings
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Works well with both distortion and clean settings
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Preferred over other compressors for its unique sound
CONS
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Lacks an attack control for more nuanced dynamics
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May not be compatible with all fuzz pedals
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Might be too simple for those seeking more control
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Introduces noise, especially through dirty amps
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Adds "white noise" to the signal chain
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The casing on newer models may feel less robust
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Can cut power and dull dynamics if not used carefully
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Some find it too noisy without a noise gate
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Limited functionality with bass guitar
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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
User experience
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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
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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
Critic Reviews
4.5 out of 5
Based on 53 Reviews and 338 Ratings
222
the red brick
The only comp I've ever had or tried. Bought used at the store. Marked my definitive setting the day I brought it home with a marker (sensitivity at 10 o' clock, output at 3). It's basically only useable on guitar, it has a very distinctive quacky sound. Gets the job done.
268
Another industry-standard (for good reason)
It does what it's supposed to do. This will probably be one of those 'always on' pedals on your board. Makes the rest of your rig sound great. Adds some nice boost too. The controls are easy to use, and you can usually find plenty of used ones on Reverb for really cheap. A must-have.
822
At the end ... or the begin, your call.
This is a humble pedal, and I found out this little red buddy has five functions, and an interesting stacking with the Ibanez TS Mini.
1) First off, this pedal can control the overall gain and volume from your signal, to keep these parameters in the desired level.
2) To add an acoustic flavor. This pedal amplifies the acoustic frequencies in single coils, so your sound might be close to a real acoustic guitar if you tweak the guitar and the pedal.
3) With the TS Mini, occurs an strange effect, as the Dyna Comp pushes the frequencies up from the TS Mini, instead of limiting the volume.
4) To add a retro effect on your signal pedalboard, when it is used at the end of the signal chain.
5) As a booster, when the signal is not compressed.
6) To provide sustain to your tone.
Perhaps the sound of this pedal might not has a studio quality, it does its job pretty well.
822
7) To clean up the desired dirty from an Overdrive or Distortion.
8) To balance volumes between humbuckers and split-coil guitars (perfect for my Fender Blacktop).
822
Perhaps, it has many uses, there is something about the sound that colors the signal. Also it makes some noise but I read that there is an internal dip to activate a noise gate.
822
9) Dan from That Pedal Show tell a suggestion in a chapter to put the compressor after the overdrives and distortions. I've tried that and it is so true! It increases the sustain in the overdrives with a subtle configuration.
822
Cons: Brings some noise to the chain. Is not transparent at all. Muddies your signal (this is, it produces a loss in the global signal). If you analyze all these cons, depends upon what are you searching for, say, is great having this pedal in first position as it shapes all the signal and tames any picky drive (I'm watching you Blues Driver) into a more clean but compressed sound.
822
Right now, this pedal returned to the box, but it is still a good pedal.
822
Something about the cons that I found about this pedal, made me to check it in deep this last night. Say, I watched some videos about the MXR Dyna Comp also I have the Amplitube App for iPad. So, in the app you can use a pedal called "Red Comp", of course it is based on the old Dyna Comp, and the newest pedals just differs in minimal components, so the sound must be close. I didn't like to use the Dyna Comp in my pedalboard because it degraded the signal... until I read about there is an internal pot that can adjust the amount of noise caused by the compression.
So, I unscrewed all the pedal, to find a very little pot (white-semi transparent color). Then, I plugged the pedal and the guitar to the amp, and I put the Dyna Comp knobs at full clockwise.
I found that pot is to calibrate the gate of the compression. I wanted the pedal to sound like in the videos and the Amplitube App, so I got to the point with the maximun compression in the internal pot (I used an overdrive pedal to figure out when this happens, because the saturation grows a lot) and turning the sustain in counter clockwise turns the saturation to a low gain. No jumping levels in the sustain are listened and the dynamics are increased (your playing feels fast and soft).
So I strongly encourage if your MXR Dyna Comp is not what you like the best, probably it requires to be calibrated. If you don't have any knowledge about electronics, or you don't want to mess your pedal, a technician can do it for you.
246
Works Great. Is it's own tone.
Very sensitive & powerful compressor with it's own tone. Lots of squash. Favorite settings: Volume at 85%, Sensitivity 25%. Must use sparingly. Can easily squash your dynamics a bit too much. Third in signal chain.
41029
ac30, an old one or even the HW2 will just do that note pop thing. Its fast response but with some sag at the tail end of the note
166
Good Compressor Pedal
I don´t have to much to say about this pedal but, that´s a compressor pedal that does this function very well. It keep´s the sustain very well and cant be used too on solos , like a gain booster ( without letting your sound dirty, giving you a lot of sustain and , a bit more of gain , when combined with fuzzes, distortions or overdrive pedals.
188
Nice, tight high end and sustain.
I have it due a friend of mine borrowed it to me. I like how it gives me more sustain and tightens the high end of my tone.
Artist usage
Add artist
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.
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
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.
In this photo, which was uploaded on Instagram by Billie Joe Armstrong, the MXR Dyna Comp pedal is visible.
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.
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During the 1991 Japan tour with Eric Clapton, George Harrison used the MXR M102 Dyna Comp, as documented by Bekkoame.
In this user-uploaded photo, Noel Gallagher is shown using the MXR M102 Dyna Comp compressor pedal.
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.
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.
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.
In 2003 he used Dyna Comp, block logo.
Album Usage
The MXR M102 Dyna Comp has been featured on the following albums:
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use MXR M102 Dyna Comp, it is most commonly used with the following gear.
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Community setups
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