Electro-Harmonix Op-Amp Big Muff Pi
The Electro-Harmonix Op-Amp Big Muff Pi is a reissue of the late-1970s operational amplifier variant of the Big Muff, famous for its association with Billy Corgan and the massive wall-of-sound guitar tones on the Smashing Pumpkins' early records. Unlike the transistor-based Big Muff circuits, the Op-Amp version produces a denser, more saturated fuzz with a scooped midrange and aggressive high-frequency sizzle that creates a thick, enveloping distortion especially effective for layered guitar ...