Electro Harmonix Op Amp Big Muff Pi Fuzz Pedal Type_Cello Subtle settings can add natural

Subtle settings can add natural depth to clean and crunch sounds

Machine heads: Grover® tulip machine heads provide simple

Carrying a spare 9V battery is recommended for live performances and important recording sessions

six-bolt attachment

Tilt-back stand

Electro Harmonix Op Amp Big Muff Pi Fuzz Pedal Type_Cello Subtle settings can add naturalThe Electro Harmonix Op Amp Big Muff Pi recreates the distinctive late 1970s V4 Big Muff circuit in a compact, modern pedalboard format. Instead of the transistor based architecture used by many other Big Muff designs, this version uses operational amplifiers to produce a harder edged, more aggressive distortion character. Expect huge sustain, crushing rhythm tones and a pronounced crunch that works particularly well for alternative rock, grunge,