Electro-Harmonix J Mascis Ram's Head Big Muff Pi Distortion/Sustain Pedal

The Electro-Harmonix J Mascis Ram's Head Big Muff Pi Distortion/Sustain Pedal, commonly known as the Big Muff, is a legendary guitar pedal known for its distinctive fuzz effect. Designed by Electro-Harmonix in the late 1960s, the Big Muff has become one of the most iconic and widely recognized effect pedals in the history of electric guitar music. Characterised by its rich, creamy, violin-like sustain and its ability to produce a harmonically rich, thick, and dense distortion, the Big Muff has been a staple on the pedalboards of countless guitarists across various music genres, from rock and grunge to indie and beyond.