Keeley channels Smashing Pumpkins for Rotten Apple OpAmp Fuzz pedal

Keeley has unveiled the Rotten Apple, a fuzz that aims to capture Billy Corgan at the height of his Big Muff powers.

Promising a wide gain range, touch sensitivity and fat bass response, the Rotten Apple packs a switch to toggle between full, scoop and flat EQ settings.

Keeley reckons the resultant Muff V4-inspired tone is spot-on - the team even tested it extensively using an Eric Clapton Strat with Lace Sensors, just like Billy used to do. Good effort!

The Rotten Apple is available now from Robert Keeley Engineering for $149.

Michael Astley-Brown

Mike is Editor-in-Chief of, in addition to being an offset fiend and recovering pedal addict. He has a master's degree in journalism, and has spent the past decade writing and editing for guitar publications including MusicRadar, Total Guitar and Guitarist, as well as a decade-and-a-half performing in bands of variable genre (and quality). In his free time, you'll find him making progressive instrumental rock under the nom de plume Maebe.

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