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Fusion Dynamic Distortion

Based On
Suhr® Riot™
Effect Type
Build Difficulty
Project Summary
A versatile distortion/overdrive noted for its Marshall-like “stack of amps” tone.
Fusion Dynamic Distortion printed circuit board

Printed Circuit Board

What's included?
PCB only. Build instructions and parts list can be viewed or downloaded from this page.


In stock

Complete Kit

Not yet available.
Kits are developed based on interest, so if you’d like to see one for this project, let us know.
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Project overview

The Fusion Dynamic Distortion is an adaptation of the Suhr® Riot™ Distortion, originally released in 2009. The Riot is in the family of Marshall-like pedals and is lauded for its high gain “stack of amps” tone.

The Riot was developed as a modified clone of the MI Audio Crunch Box from 2006, which in turn was a derivative of the Marshall Bluesbreaker along with some inspiration from the Fulltone® OCD®.

The updated version of the Fusion is very similar to the legacy PCB, but with the addition of an internal slide switch so that 9V and 18V modes can both be used instead of being hardwired for one or the other.

As in the legacy project, we’ve also brought over the internal Presence trimmer from the Crunch Box. The Riot never had one, though it had two fixed resistors that simulated a 20k trimmer set at around 1:00 (58% rotation). You can always set it to be exactly like the original, but by having the trimmer available, you have access to an expanded range of tones not found in the original Riot.