Used Electro-Harmonix Big Muff Op-amp Effect Pedal

Unleash iconic ’70s fuzz with this used Electro-Harmonix Big Muff Op-Amp in great condition. Famous for its aggressive sustain and focused midrange, it delivers everything from gritty drive to soaring lead tones. Simple, stage-ready controls include Volume, Tone, and Sustain, plus a Tone Bypass switch for extra punch. Runs on a 9V battery or standard 9V DC power supply (center-negative) and fits easily on any pedalboard.