Used Electro-Harmonix Big Muff Op-amp Effect Pedal

Bring iconic ’70s-style fuzz to your board with this used Electro-Harmonix Big Muff Op-Amp in good condition. Famous for its aggressive, singing sustain and tight midrange bite, it delivers everything from gritty overdrive to massive wall-of-sound distortion. Simple three-knob control layout (Volume, Tone, Sustain) plus true bypass for a clean signal when off. Powered by standard 9V DC adapter, it’s a studio and stage classic ready to roar.