Skip to Store Area:

Welcome to!


You're currently on:

+ Click images to enlarge

MXR M85 Bass Distortion




Availability: Usually ships within 2-7 days.

Add Items to Cart


Back in the day, if you wanted to use a distortion pedal and keep your low end intact, you had to split your clean and dirty signals between two amps. With the MXR Bass Distortion, there’s no such need—this pedal puts control over the clean/dirty mix right at your feet with separate Dry and Wet level controls. The Tone control, which only affects the distortion signal, is a simple high cut filter for dialing back the top end, and the Distortion control sets the distortion signal’s intensity. 

Finally, the MXR Bass Distortion’s raunchy sound comes in two flavors, selectable via the LED/SIL switch. The default SIL setting uses silicon clipping diodes for an aggressive, biting sound and a bit of compression, while the LED setting uses LED diodes for a more wide open sound and a nice gain bump.

 MXR M85 Bass Distortion Effects Pedal Features:

  • A cool bass distortion co-designed with Fuzzrocious Pedals founder Ryan Ratajski

  • Two kinds of classic distortion (silicone diode or LED) in one pedal

  • Distortion affects only higher frequencies, leaving your fundamental full and punchy

  • Separate wet and dry level controls make it easy to dial in the perfect mix

  • Roll off unwanted harmonics and high-frequency overtones with the high cut filter


The MXR Bass Distortion dishes out big gnarly tones with all the low end your bottom-dwelling heart desires. Working closely with indie pedal phenom, bass dirt guru, and Fuzzrocious Pedals founder Ryan Ratajski, we took a famously nasty sounding distortion circuit and re-tooled it for the modern working bass player.