EHX Big Muff Pi Op-Amp | Northeast Music Center Inc.
Electro-Harmonix - The EHX Op-Amp Big Muff Pi is famous for its "huge, crushing Big Muff sound with more crunch… great for grungy, wall-of-sound distortion, heavy rhythm playing and heavy leads."
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Electro-Harmonix Op Amp Big Muff Pi Reissue Black / Orange - K&S Music Center LLC
