The Electro-Harmonix Triangle Big Muff Pi is a reissue of the original Big Muff Version 1 circuit from around 1969. It delivers thick, vintage-flavored fuzz with rich harmonics, smooth compression, and long, singing sustain.

Its signature sound is big, woolly, smooth, and almost violin-like—ideal for expressive lead guitar, psychedelic rock, and huge, fuzzy chords.

What does it sound like?

Imagine a guitar tone that becomes thicker and more saturated, with notes that seem to bloom and hang in the air rather than fade quickly.

• Vintage fuzz: Warm, dense distortion with a rounded, slightly woolly character.
• Long sustain: Single notes continue ringing, making bends and vibrato especially expressive.
• Smooth lead tones: Can produce singing, almost violin-like sounds associated with classic psychedelic and progressive rock.
• Huge rhythm tones: Power chords become thick and aggressive, well suited to alternative rock, stoner rock, and fuzz-heavy riffs.
• Rich harmonics: Adds a complex, buzzy texture that is distinctly different from conventional overdrive.