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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

The same circuit, but updated for the 125B enclosure format for a more streamlined build. The bypass switch PCB is integrated.


In stock

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