Used Electro-Harmonix Big Muff Op-amp Effect Pedal

This used Electro-Harmonix Big Muff Op-Amp pedal is in great condition and delivers the classic '70s fuzz with raw, aggressive tones favored by Smashing Pumpkins. Featuring Volume, Tone, and Sustain controls, true bypass switching, and powered via 9V battery or optional adapter, it produces rich harmonic distortion and creamy sustain. Whether you're chasing vintage grunge or modern grit, this op-amp variation offers a distinct sound that stands out in any rig.