Used Electro-Harmonix Big Muff Op-amp Effect Pedal

Add legendary ’70s-style fuzz to your rig with this used Electro-Harmonix Big Muff Op-Amp in good condition. Delivering thick, sustaining distortion and smooth violin-like lead tones, it features Volume, Tone, and Sustain controls plus a true bypass footswitch for a clean signal when off. Designed around an op-amp gain stage for aggressive, punchy fuzz, it runs on a standard 9V DC pedal power supply for easy pedalboard integration.