MXR M134 Stereo Chorus Pedal

91 out of 100. Incorporating 275+ ratings and reviews.

Gearank Recommendation

The M134 was on our recommended list for Chorus Pedals Over $100 from August 2017 until January 2021 when it was out-ranked by other chorus pedals.

Rating Source Highlights

Website Source *Rating Value
Audiofanzine Golem 80/100
Equipboard miguel_angelo 100/100
*Displayed values are prior to the Gearank Algorithm’s adjustments it makes when evaluating the source.


The MXRM134 is a very versatile pedal, capable of covering a huge variety of different chorus tones. The unit has an overall total of six controls; five variable knobs and an on/off bass filter switch.

A key selling point of this pedal is that it can actually cover the tonal range of an analog chorus as well as approximate the brightness you find in digital units, making it a great fit for those of you who are looking to cover a lot of ground.

Like other effects made by MXR, the MXRM134 has a durable metal chassis.

Some owners caution that two of the controls of the pedal are not intuitively labeled. The controls in question are: the bass filter and the intensity control. The bass filter (which isn’t labeled) reduces chorusing on the low-end signal, resulting in a much brighter tone. While the intensity knob controls the mix of the dry and chorused signal (should’ve been labeled as blend).

This feature packed chorus pedal will make a good addition for anyone who wants a versatile chorus effect unit.


  • Control: Bass, Treble, Intensity, Width, Rate
  • Circuit: Analog
  • Bypass: Hardwire Bypass
  • Power: 18-Volt Adapter or 2 x 9V Batteries (Not Included)
  • Dimensions: 5.5″ x 2.5″ x 4.5″
  • Weight: 1.5 lbs.
Although this was previously on our recommended list, there are now more highly rated options available which you can see in our guide to The Best Chorus Pedals.


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