Explore Neural Amp Modeler (NAM) profiles of the iconic Electro-Harmonix Big Muff Pi fuzz pedal. From the thick, sustaining tones of vintage '70s rams-head and triangle versions to the scooped midrange roar of the NYC reissues, plus variations like the Russian Green, Black, and Civil War editions. Used by legends including David Gilmour, Billy Corgan, J Mascis, and Dan Auerbach to create everything from psychedelic solos to wall-of-sound grunge and indie rock mayhem.