The MXR Poly Blue Octave combines modern and classic pitch-shifting styles with fuzz and modulation to create the ultimate octaver pedal for tonecrafters and sonic seekers.
Poly Blue Octave has four separate octave divisions - one octave down, two octaves down, one octave up and two octaves up - and you get to control the level of each in the mix. Each is polyphonic by default, meaning they sound just as great with chords as they do with single-note passages. Your dry signal also gets its own level control, so you can dial in the perfect blend of pitch-shifted notes.
The Poly Blue Octave is equipped with an unruly fuzz inspired by the classic MXR Blue Box™ Fuzz. Applied to all five signals, the fuzz volume can be adjusted using the Dry knob after pressing and holding the Fuzz button. When used with the sub-octave signals, fuzz sounds thick and underground. Over the higher pitched signals, the fuzz is searing and synth-like. Run them all at once for a chorus of thunder and lightning.