Used Electro-Harmonix OP AMP BIG MUFF Effect Pedal

Experience the iconic fuzz tones of the Smashing Pumpkins with this used Electro-Harmonix OP AMP BIG MUFF, in great condition. Featuring the classic 3-knob layout—Volume, Sustain, and Tone—this pedal delivers raw, aggressive distortion with a unique midrange character. True bypass ensures signal integrity, while the compact design fits easily on any pedalboard. Powered via 9V battery or standard adapter, it’s perfect for players seeking vintage-infused fuzz with modern reliability.