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:
  1. Standard Shipping : 3-10 business days
  • 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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4.7 ★★★★★
Based on 23 reviews
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A. Calhoun
Massapequa, US
★★★★★ 5
Just buy them. There is nothing not to love!
Color: Beige Tortoise Frame / Brown Gradient Lens, Color: Beige Tortoise Frame / Brown Gradient Lens
I've had these for a year or two now and came back and ordered three more. I wear these daily because they are so comfortable and cute. A lot of sunglasses give me headaches either they are too tight or too heavy, these never do. They don't catch in your hair if you put them on your head. They don't slide down your nose when you sweat or move your head. The beige tortoiseshell is the prettiest most flattering color ever. I'm a dark winter and I struggle to find cute sunglasses other than black. So many are brown warm colors the beige violet tortoiseshell is very cool and flattering for my cool toned gals. I have a pretty normal size head and these are just a hint of oversized but in a good way. I have an oval face that leans long oval or slight heart and these are seriously flattering. I have so many photos in them they always look good. I'm going to try the all plastic version too but I honestly love the thin metal arms. Just buy these it's such a good buy and brand. I literally donated other pairs because I don't wear them anymore after discovering these. I bought obviously the beige tortoiseshell, black with gold, and the cherry. Debating on the green. My only wish is more color options. I'd love more silver arm options. Thanks WMP for these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
E
Verified Purchase
Elizabeth
Houston, US
★★★★★ 4
Cute but wide
Color: Tortoise Frame/Brown Lens
cute sunglasses that look nice on but are a little wide for my more narrow face. They do fit well enough for me to wear, it’s just they’d definitely fall off if I lean down in them. I think I’m going to keep them though. Construction wise, they are nice, very light which makes them more comfortable and the tortoise color is pretty. Overall nice sunglasses for the price.
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Reviewed in the United States on May 26, 2025
C
Verified Purchase
Colleen B.
Chelsea, US
★★★★★ 5
Perfect shades
Color: Tortoise Frame/Brown Lens
I love these sunglasses! I have a small face, and I find that these fit perfectly! They are stylish, fun and I don't have a problem of them sliding down my nose.
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Reviewed in the United States on May 24, 2026
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Verified Purchase
chauntal
Houston, US
★★★★★ 5
Comfortable sunglasses
Color: Gold Frame/Black Lens
Great fit, definitely polarized, and super cute on. Even the packaging was nice. Definitely a great buy for the price!
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Reviewed in the United States on June 1, 2026
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Verified Purchase
Emily R
Natrona Heights, US
★★★★★ 5
Nice quality for the price
Color: Tortoise Frame/Brown Lens
Love these. Better quality than I thought they might be. Fit well, look nice.
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Reviewed in the United States on April 29, 2026

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