Pumpkin Pi
Op-amp Big Muff clone inspired by Billy Corgan's 1977 IC Muff, delivering the iconic chainsaw fuzz tone from Smashing Pumpkins' Siamese Dream.
The Pumpkin Pi is Stomp Under Foot's faithful recreation of legendary 1977 op-amp Big Muff Pi, exact circuit that defined Billy Corgan's signature guitar tone on Smashing Pumpkins' groundbreaking album "Siamese Dream." Using IC op-amps instead of transistors to shape fuzz gives this pedal its distinctive aggressive, chainsaw-like quality that cuts through dense mixes with surgical precision.
Unlike exact vintage replicas that include multiple tone switches, Pumpkin Pi focuses on core circuit with streamlined two-knob interface: Sustain (gain) and Tone controls. This simplified approach delivers essential Siamese Dream sound without unnecessary complexity. Pedal excels at producing thick, aggressive fuzz tones with powerful midrange presence and articulate low end, making it ideal for modern alternative rock, shoegaze, and any application requiring massive walls of saturated guitar.
Op-amp design provides slightly different character than transistor-based Muffs, with tighter bass response, more focused midrange, and slight bloom in overall sound that gives notes extra sustain and dimension. Whether you're recreating classic '90s alternative tones or forging new sonic territory, Pumpkin Pi delivers vintage-inspired fuzz with modern reliability. Handmade in USA with through-hole components and true bypass switching.
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