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Fusion (Legacy)

Based On
Suhr® Riot™
Effect Type
Build Difficulty

Legacy PCB

Designed for the 1590B enclosure with side-mounted jacks, which some builders prefer. Bypass PCB (optional) sold separately.


In stock

Updated Version

This project is in the queue for a redesign in the updated 125B format, but it's not yet available. Sign up for our mailing list to be notified of new releases.

Project overview

The Fusion Distortion circuit is inspired by the Suhr® Riot Distortion™ pedal. The Riot was originally a modified clone of the MI Audio Crunch Box, which in turn was a tweaked variant of the Marshall Bluesbreaker with some inspiration from the Fulltone® OCD. Like the Crunch Box, the Riot is in the family of Marshall-like pedals and is lauded for its high gain “stack of amps” tone. It was originally released in 2009.

The Fusion is not a direct clone or copy of the Riot or its successor, the Riot Reloaded. It is most similar to the original version, but with an added option for 18V operation using a charge pump. It also has an internal “Presence” control which the original does not have.

Aion FX has no affiliation with Suhr® or JS Technologies. Riot Distortion™ is a trademark of JS Technologies.


Project Documents