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

The Poly Blue Octave features 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, which means they sound just as amazing with chords as they do with single note passages. Your dry signal gets its own level control, as well, so you can dial in the perfect blend of pitch-shifted tones. 

The MXR Poly Blue Octave delivers high-performance pitch shifting, fuzz, and modulation in a ruggedly reliable housing with true bypass switching. Put this into your signal chain, and open up new sonic frontiers.

Features:

• EXP jack allows use of an expression pedal or tap switch to control certain parameters 
• FOOTSWITCH toggles effect on/bypass (white LED indicates on) 
• MOD knob adjusts the rate of modulation effect 
• DRY knob adjusts the output level of dry signal 
• FUZZ switch toggles fuzz effect on/off (blue LED indicates on) 
• SUB-1 knob adjusts the output level of signal shifted one octave down 
• MONO switch toggles between monophonic and polyphonic pitch-shifting modes (red LED indicates monophonic mode) 
• SUB-2 knob adjusts the output level of signal shifted two octaves down 
• OCT+1 knob adjusts the output level of signal shifted one octave up 
• OCT+2 knob adjusts the output level of signal shifted two octaves up 
• Current Draw: 265 mA
•  Power Supply: 9-volt battery (remove bottom plate to install), a 9-volt AC adapter such as the Dunlop ECB003/ECB003EU, or an MXR BrickTM Series power supply.