MXR Poly Blue Octave

Crazy octaver from MXR with a fuzz!

The MXR Poly Blue Octave brings together modern and classic pitch shifting styles with fuzz and modulation to create the ultimate octave pedal for tonecrafters.

Level up
The Poly Blue Octave has four separate octave divisions - one octave down, two octaves down, one octave up and two octaves up - and you can 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, allowing you to dial in the perfect mix of pitch-shifted tones.

From contemporary clarity to raw vintage grit
The Mono switch takes you back to the gritty, monophonic tones of analog pitch shifters. In this mode, the sub-octave signals have the warm vibes and raw personality of a pedal like the MXR Vintage Bass Octave, while the higher octave signals resemble the Octavio Fuzz with its fuzz intensity dialed all the way back.

Summon the thunder and lightning
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 button after holding down the Fuzz button. When used with the sub-octave signals, the fuzz sounds thick and underground. Above the higher-pitched signals, the fuzz is searing and synth-like. Perform them all at once for a chorus of thunder and lightning.

Phase yourself
To provide your octave notes with an enticing sense of movement, from thick and viscous to frenzied and frantic, the Poly Blue Octave features a dual-mode modulation circuit. In polyphonic mode, the circuit offers an eerie simulation of the famous Leslie effect, and in monophonic mode it offers classic swirls and swooshes inspired by the Phase 90. Like the fuzz effect, the modulation applies to all five signals when it is on. The Mod knob adjusts the speed of the effect - if you want to turn it off, just roll the Mod knob all the way counterclockwise.