Bringing together silicon circuitry, a passive or active jump switch for use on a wide spectrum of instruments, and a simple two-knob interface with controls for volume and pulse width from square to narrow, the Zvex Fuzzolo Fuzz packs gobs of aggression into a Pez-sized pedal. Designed to bring full, throbbing lows and mids equally well to guitar or bass, this miniature effect imparts the gnashing edge to your sound perfect for post-metal, sludge, or math-rock.