The Fulltone Ultimate Octave pedal gives you fat distortion and fuzz tones, with an extra footswitch for piling on a screaming octave-up when you need it. The Ultimate Octave pedal features an active tone control and a "Fat/Bright" switch that lets you go from girthy mids to a scooped tone with bass-y and bright lows and highs. If you like that psychedelic solo tone that vintage octave fuzz pedals provide, you'll love the versatile, monsterous sounds you'll wring out of your rig with the Ultimate Octave pedal!