Electro-Harmonix Effect Pedals - Big Muff OPAMP
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Electro-Harmonix Effect Pedals - Op-Amp Big Muff Pi


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The Electro-Harmonix Effect Pedals - Op-Amp Big Muff Pi is the late-70s inspired Big Muff clone whose sound was popularized by the 1993 epic recording Siamese Dream from the Smashing Pumpkins. The main innovation in technology is relying on an op-amp rather than transistors and three gain stages rather than four. The result is the iconic thick wall-of-sound from the 90's grunge bands. True bypass switching for maximum signal integrity in bypass mode.

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