SKU: 70704500397

MXR Poly Blue Octave Effect Pedal

Sale price$106.20 Regular price$118.00
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Description

MXR Poly Blue Octave Effect PedalWith upgrades in every feature and brand new sounds to explore, MXR and the Poly Blue Octave brings MXR's classic octave effects to the next level. With masterful pitch shifting already in MXR's area of expertise, the Poly Blue Octave shows how much further the experience can go. The Poly Blue Octave begins with four separate controllable octave divisions one octave up, two octaves up, one octave down, and two octaves down. Already, the experience at

With upgrades in every feature and brand new sounds to explore, MXR and the Poly Blue Octave brings MXR's classic octave effects to the next level. With masterful pitch-shifting already in MXR's area of expertise, the Poly Blue Octave shows how much further the experience can go.

The Poly Blue Octave begins with four separate controllable octave divisions – one octave up, two octaves up, one octave down, and two octaves down. Already, the experience at hand is technically advanced and functionally deep. Each octave division is polyphonic and features a dedicated knob to blend into the mix to preference. The Poly Blue Octave's polyphony makes both single notes and chords bloom with MXR octave beauty.

Extra functions build on this quadruple-octave effect pedal. The Poly Blue Octave's Mono switch will set the polyphony effect monophonic to replicate the single note grittiness of analog-style pitch shift effects. Fans of MXR will be familiar with these monophonic tones, from the sub-octave's MXR Vintage Bass Octave tones to the higher octave's Octavio Fuzz signal sounds without the fuzz effect. Those in need of a classic MXR fuzz effect, however, can rely on the Fuzz switch and its MXR Blue Box Fuzz-style buzz. This fuzz effect is applied to all four octave voices in addition to the dry mix control.

With multiple octave outputs and fuzz tones covered, the MXR Poly Blue Octave tacks on one last touch with its Mod control. The dual-mode modulation effect of the pedal can create rotary-style swirls a la Leslie speaker effects in polyphonic mode or sweeping waves like the MXR Phase 90 in monophonic mode. A Mod knob controls the speed of the modulation effect as applied to all five signals. Ease in Mod for colorful flourish or crank it to let the effect loose for absolute modulated craziness.

Expression connection through the EXP ¼" output allows for deeper interaction with the Poly Blue Octave's effects. The Dunlop Volume (X) 8 or the MXR Tap Tempo can be used to sweep between different knob configurations or toggle the fuzz or mono settings on and off – hands free.

With multiple effects equipped, the Poly Blue Octave carries a board's worth of pitch shifting, distorting, and modulating effects in a compact pedal. Functions for endless experimentation and effortless musicality make the Poly Blue Octave shine. Cutting-edge and imaginative, MXR and their mastery of octave effects strike again.

  • Four independent octave divisions
  • Dry mix control
  • Modulation mix / speed control
  • Switchable fuzz effect reminiscent of the MXR Blue Box Fuzz
  • Switchable monophonic and polyphonic octave effect modes
  • Expression pedal connectivity
  • True bypass switching
  • 9 Volt battery connection
  • 9 Volt DC power requirement - power supply included
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70704500397

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Size was right on
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This is my new stage shirt. I got so many compliments of the look and feel.
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Reviewed in the United States on May 18, 2026
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Color is excellent
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The fit overall is good. The arms are a little big but fits well everywhere else. Love the color.
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Solid Basic Dress Shirt With a Slightly Small Fit
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This shirt is pretty decent overall for the price. The material is on the thinner side, but thankfully it doesn’t have that overly shiny look that a lot of cheaper dress shirts tend to have. It still looks fairly clean and presentable, and it works well for business casual wear or occasions where you just need a simple button-down that looks put together. Fit-wise, I’d say it runs slightly small. It’s not dramatically off, but if you’re between sizes or prefer a little extra room, sizing up might be a good idea. Other than that, it’s a solid basic shirt that gets the job done without looking cheap.
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Whatever their size chart says order a size up and it will fit perfect. The size chat suggests a large for me. I read some reviews and ordered extra large and it fits perfect.
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