1971 Triangle Big Muff Pi

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Circuitry: Analog, four-transistor circuit (specifically the EH-3003 design utilizing vintage, highly coveted transistors like the FS36999). Controls: Volume, Tone, and Sustain. Vo lume: Sets the overall output level. Tone: Blends between low-pass and high-pass filters, creating the signature scooped mid-range the Big Muff is known for. Sustain: Controls the amount of fuzz, distortion, and violin-like sustain. Power: 9-volt battery (via an internal battery snap). Very early '71 models also featured an on/off switch integrated into the Volume pot or a hardwired AC power cable. Bypass: Hardwire bypass (True bypass was not introduced until later reissues). Enclosure: Unpainted or silver/grey bent sheet-metal casing. Show more