PEDALS I.C.B.M.

Confirmed from sources as the muff circuit Billy Corgan used for his "Siamese Dream" guitar sound, this pedal is cloned from the exact same 1977 opamp-based model used on the classic album. This version was the first muff to break away from the traditional four-transistor circuit design, using instead two opamps (a LM741 and JRC4558) that yielded a crunchier hi-gain twist to the classic fuzz.