The Fulltone Catalyst distortion pedal is like three units in one pedalboard-friendly stompbox! You get totally cool fuzz tones that be easily switched to more conventional distortion tones. Plus, you get totally useful clean boost utility (great for pumping up those leads or maximizing other effects in the signal chain) and a great-sounding overdrive — all from a useful little box that"s astoundingly really simple to use at home, onstage, or in the studio. The Catalyst features a completely brain-dead really simple control layout, with large Volume and Gain knobs, smaller Bass/Mids and Treble knobs, and a Flame/Spark switch that lets you effortlessly move from fuzz to crunch. You can transform your amp rig with one pedal; all you need is a Catalyst!