Univox Super-Fuzz

The Univox Super-Fuzz is a vintage fuzz pedal produced in the late 1960s and 1970s, generating a thick, aggressive octave-up fuzz tone through a germanium and silicon transistor circuit that mixes the fundamental note with an upper octave harmonic. Its two-position tone switch toggles between a scooped, bass-heavy voice and a more midrange-present setting. Steve Turner of Mudhoney gifted a Super-Fuzz to Mark Arm, and the pedal became one half of the namesake combination celebrated on the band's landmark EP Superfuzz Bigmuff — the other half being the Electro-Harmonix Big Muff Pi. The Super-Fuzz's aggressive, buzzy character — thinner and more cutting than the Big Muff's woolly saturation — gave Mudhoney's guitar sound its distinctive snarling edge. Original units are highly sought-after by collectors, with numerous boutique clones and reissues attempting to capture the circuit's raw, unrefined character. The Super-Fuzz's influence on grunge and garage rock tone is foundational.