Pricing and availability
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Average Price: $183
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$60
$201+
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Price History
Based on price data from 6 merchants for "MXR M134 Stereo Chorus". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Meet the MXR M134 Stereo Chorus, a powerhouse effects pedal that will transform your musical experience. This unique gadget adds an extra layer of sparkle to clean-toned arpeggios while fattening and widening distorted power chords. With its extensive tone-shaping options, you have the freedom to create a wide array of sounds with just a few adjustments.
The MXR M134 Stereo Chorus operates in both mono and stereo modes, providing maximum lushness and a vibrant, anthem-like sound. The Bass Filter button is a standout feature, allowing you to apply the effect to high frequencies only, preserving the low end of your guitar tone.
Whether you're an experienced musician or a hobbyist, the MXR M134 Stereo Chorus pedal is a must-have in your gear. It's not just an effects pedal; it's your ticket to a world of unlimited musical possibilities.
Key Features:
- Extensive tone-shaping options with Rate, Width, and Intensity knobs
- Operates in mono or stereo mode for a full-bodied sound
- Bass Filter button applies the effect to high frequencies only
- Footswitch toggles effect on/hardwire bypass (red LED indicates on)
- Intensity control adjusts overall effect level
- Bass and Treble knobs EQ the modulated frequencies only
- Stereo outputs for a huge tonal spread
- Can be powered by two 9-volt batteries or a Dunlop ECB-004 18-volt AC Adapter (included)
Product specs
| Pedal Type | Stereo Chorus |
| Inputs | 1 x Instrument |
| Outputs | 2 x 1/4" |
| Power Source | 18V DC power supply (included) |
| Batteries | 2 x 9V |
| Height | 2.5" |
| Width | 5.5" |
| Depth | 4.5" |
| Weight | 1.5 lbs. |
FAQs
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What power options are available for the MXR M134 Stereo Chorus?
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The MXR M134 Stereo Chorus can be powered by two 9-volt batteries or an 18-volt DC power supply. It is also compatible with the DC Brick™, Iso-Brick™, and Mini Iso-Brick™ power supplies.
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Does the MXR M134 Stereo Chorus work in stereo setups?
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Yes, the MXR M134 Stereo Chorus is designed for stereo operation, featuring two 1/4" outputs to create lush, expansive chorus effects in stereo rigs.
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Can the MXR M134 Stereo Chorus preserve low-end frequencies?
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The MXR M134 Stereo Chorus includes controls that allow you to shape the tone while preserving low-end frequencies, making it suitable for both bass and guitar applications.
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What are the main controls on the MXR M134 Stereo Chorus?
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The MXR M134 Stereo Chorus features several controls, including Rate, Width, and Intensity, allowing you to customize the depth and character of the chorus effect.
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Is the MXR M134 Stereo Chorus suitable for live performances?
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Yes, the MXR M134 Stereo Chorus is well-suited for live performances due to its robust build and stereo capabilities, providing rich and dynamic chorus effects on stage.
Videos
ProGuitarShopDemos
MXR M134 Stereo Chorus
Reviews
PROS
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Warm, rich sound enhances electric guitars
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Exceptionally quiet operation with no unwanted noise
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Stunning stereo effect when used with two amplifiers
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Includes instructions for specific chorus settings
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Handles line level signals well
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Two-band EQ and bass filter button for tone shaping
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Versatile, works well with guitar and bass
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100% analog circuitry
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Large headroom due to 18V operation
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Blinking LED rate indicator adds visual feedback
CONS
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Not ideal for mono setups; shines in stereo
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Large footprint may not fit all pedalboards
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Requires 18V power, which can be inconvenient
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Lacks a dry/wet mix control
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Some users find it challenging to dial in preferred settings
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May be considered expensive compared to other chorus pedals
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about MXR M134 Stereo Chorus.
Features and functionality
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The 2nd output is phase inverted, creating a stereo image that might vanish in mono mixes, affecting playback on single-speaker devices.
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Unique to the M134, the LFO includes a width control, and the chorus section features both boost and cut EQ options, enhancing tonal flexibility.
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Operates exclusively at 18 volts, potentially contributing to its excellent headroom and dynamic range.
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EQ adjustments affect only the chorus signal, leaving the dry signal untouched, allowing for precise tonal sculpting.
Source
Use cases and applications
Comparisons
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Owners consider the MXR Stereo Chorus to have less tone suck compared to older Boss chorus pedals, based on user comparisons and video demos.
Source
4.5 out of 5
Based on 6 Reviews and 35 Ratings
40997
oh wow
I didn't know I still had one of these... its a 90s version. It sounds good and has lots of useful features versus like a small clone or CE2 but its therefore harder to dial in because there are lots of bad settings. he stereo is VERY stereo sounding when you make use of it. Great for synthesizers and worth a shot when you're mixing a record and want to add some swirl to your echo sends. Sold, since having the TC reissue analog chorus/flange I never touched this even for true stereo duty. The tone controls for the wet signal are cool, but its inferior to the TC unit in every other way right down to the TC having true stereo input and the ability to change the input gain for synths and mixing...
984
A modern classic... Awesome
It's awesome. Period. Since i got it that it is always on, slow and wide. You can really shape and fine tune your chorus for multiple combinations, and guess what, they all sound killer. (have you hear it through a synthesizer or bass? the stereo just slays.....)
Since i play an 8 string the bass cut feature is an exceptional tool to keep my low end tight and retaining that choirish vibe on the medium and top end.
Super versatile, awesome sound, superb 100% analog construction. No true bypass, but honestly i can't tell the difference in the sound.
I also love the blinking led. It blinks in time with the rate of the chorus, it's just cool to have it there and visualize what your doing to your sound.
249
Got it for the aesthetics, kept it for the joy.
If you play indie music or a more slow-oriented kind of guitar sound, this shit is the bomb. Got it because Matthew Healy had one and the pedal itself is just so damn beautiful, but it quickly became an essential part of my pedalboard and it added a lot of personality to my sound
514
Can't go wrong with it
100% analog circuit, lush and warm tone, huge headroom (runs on 18v) and very tweakable. Probably the best chorus ever which allows user to dial into wide range of sounds - from classic cheesy 80s leads to leslie-a-like and everything in between. It is worth to experiment with its placement. Also you can use as a kind of post-gain EQ. I dig the blinking led light, it allows you to see how fast is the modulation.
The pros win over the cons
Pros: Highly responsive EQ| dynamic use of the oscillation to calibrate the pedal between a rotary and a flangy chorus| Warm analog sound. Cons: Need 18v| Lack of Dry/Wet knob| Maybe too big for some pedalboards For me it's between to category of chorus 1) the little packege user friendly pedal 2) big, sofisticated and expensive pedal Can I get the same tone with the micro version? NOPE. Can I get the same tone with a Boss CE3? Yes Can I find something better for the price? Yes, but not analog
Artist usage
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Zakk Wylde uses the MXR M134 Stereo Chorus, which features musically voiced Rate and Width controls, along with Bass and Treble EQ adjustments for shaping the chorus effect. The pedal's stereo outputs provide a wide tonal spread, as detailed by Dunlop Manufacturing.
In this photo of Metallica playing at The Stone, their first concert with Cliff Burton you can see 3 pedals on the floor: BOSS CS-1, Morley PWF and an MXR Stereo Chorus, which can be heard when he performs Anesthesia at The Stone https://youtu.be/YCGM4ttgl2k around minute 1:17 In addition to the fact that in this interview he mentions that he had a chorus but it was stolen https://youtu.be/Dxaut6XsM_E
The MXR M134 Stereo Chorus, used by Robert Trujillo. This is according to Robert's page on Dunlop's official site.
As researched extensively by Wolf Marshall in his book, "An Annotated Guide to the Guitar Technique of Randy Rhoads" and listed on guitargeek.com, the MXR M134 Stereo Chorus used by Randy Rhoads.
Lot #39 and #40 in the second group (#3198) of Julien's Auctions' December 17, 2017 "Neil Young Online Auction".
Lot 39
An MXR Stereo Chorus pedal, model M134, with box and AC adapter.
Lot 40
An MXR Stereo Chorus with AC chord.
In this Instagram photo the MXR M134 Stereo Chorus can be found besides the ProCo Rat 2 and it can be heard on "Girls", "Settle Down", "Heart Out" and "Pressure".
In this photo https://www.gitarrebass.de/wp-content/uploads/2016/12/Slayer-Kerry-King-im-Interview-effekt-rack.jpg of Kerrys rig you can clearly see it. The articel is in german unfortunately.
In this interview from PremeirGuitar.com, the front-man and lead guitarist of Children of Bodom, Alexia Laiho, is asked about what gear he uses. When asked what pedals he uses, he claims he uses only one. Below is a quote from said interview.
"I only use an MXR Stereo Chorus. That’s all I need really. I don’t fuck around with effects that much. I like to keep it rock ’n’ roll: one good guitar sound and the rest is up to me." - Alexi Laiho
Album Usage
The MXR M134 Stereo Chorus 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 M134 Stereo Chorus, it is most commonly used with the following gear.
Community setups
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