That classic combination of fuzz and octave has always sparked excitement amoung guitarists and the Ultimate Octave sparks it even more. This is one of the best sounding all-in-one fuzz/octaves out there. Volume, Tone, and Fuzz knobs take care of the expected functions while two footswitches either bypass the effect, or a/b between straight fuzz or fuzz plus octave. There is also a tiny switch that toggles between a mid-scooped, bright and thicker mode. Depending on the axe your wielding this switch can comes in handy, but we preferred the mode for its' sheer beefiness. As a straight fuzz box, this delivers up a very useful range of tones that covers nearly every corner of the whole fuzz universe. From warm and wooly to that classic frying egg fizzle, the Ultimate Octave does it all. The octave/fuzz combination had us chanting "must have" right off the bat. This combo strikes that perfect balance between being musical and chaotic, and only your playing decides how much of either you need.