Poly Blue Octave M306 is the ultimate octaver pedal with fuzz and modulation.
It has four independent level controls, under 1&2 octave, on 1&2 octave, high quality sound in polyphonic mode for chord or mono, and analog-style pitch shift sound in monoponic mode. You can add dry signals and blend to your preference without losing your core.
By adding different modulation of the barb with fuzz and each mode, you can create heavy sounds that arent like guitar/bass.
You can also connect Expression pedals such as Jim Dunlop / Volume (X) 8 to the EXP terminal to allow two different settings to come or connect an external switch such as the M199 Tap Tempo Switch to turn the FUZZ and MONO switch on and off.
DC 9 V powered (batteries cannot be used).