---
product_id: 409626000
title: "MXR Poly Blue Octave, (M306)"
brand: "mxr"
price: "¥75268"
currency: JPY
in_stock: true
reviews_count: 5
category: "Mxr"
url: https://www.desertcart.jp/products/409626000-mxr-poly-blue-octave-m306
store_origin: JP
region: Japan
---

# Classic fuzz + modulation combo Polyphonic & monophonic pitch modes 4 octave divisions w/ level control MXR Poly Blue Octave, (M306)

**Brand:** mxr
**Price:** ¥75268
**Availability:** ✅ In Stock

## Summary

> 🎸 Elevate your tone—where vintage fuzz meets futuristic pitch shifting.

## Quick Answers

- **What is this?** MXR Poly Blue Octave, (M306) by mxr
- **How much does it cost?** ¥75268 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/409626000-mxr-poly-blue-octave-m306)

## Best For

- mxr enthusiasts

## Why This Product

- Trusted mxr brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Master Your Octaves:** Four independent octave layers let you sculpt your sound with surgical precision.
- • **Chord-Friendly Polyphony:** Polyphonic pitch shifting ensures lush, full-bodied tones on chords and single notes alike.
- • **Dynamic Modulation Control:** Dual-mode modulation adds swirling Leslie or classic Phase 90 vibes, adjustable on the fly.
- • **Expressive Performance Ready:** Use an expression pedal or tap switch to seamlessly control fuzz, modulation, and mode toggles.
- • **Analog Grit Meets Modern Tech:** Toggle to monophonic mode for vintage-style warmth and raw fuzz inspired by MXR classics.

## Overview

The MXR Poly Blue Octave (M306) is a versatile octave pedal combining four separate octave divisions with independent level controls, polyphonic and monophonic pitch shifting modes, and a thick fuzz inspired by the MXR Blue Box. It features dual-mode modulation for dynamic tonal movement and supports expression pedal or tap switch control, all housed in a rugged, true bypass design. Perfect for musicians seeking rich, layered octave effects with classic analog grit and modern flexibility.

## Description

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 Mono switch takes you back to the gritty, monophonic tones of analog style pitch shifters. In this mode, the sub-octave signals have the warm vibes and raw personality of a pedal such as the MXR Vintage Bass Octave, while the higher octave signals resemble the Octavio Fuzz with its fuzz intensity dialed all the way back. The Poly Blue Octave comes equipped with an unruly fuzz that’s 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, the fuzz sounds thick and subterranean. Over the higher pitched signals, the fuzz is searing and synth-like. Run them all at the same time for a choir of thunder and lightning. For infusing your octave tones with an alluring sense of motion, from thick and syrupy to frenzied and frantic, the Poly Blue Octave features a dual-mode modulation circuit. In polyphonic mode, the circuit provides an uncanny simulation of the famous Leslie effect, and while in monophonic mode, it provides classic swirls and swooshes inspired by the Phase 90. Like the fuzz effect, the modulation applies to all five signals when engaged. The Mod knob adjusts the rate of the effect—when you want it off, just roll the Mod knob back fully counterclockwise. Through the EXP jack, the Poly Blue Octave allows you to control various settings with an expression pedal such as the Volume (X) 8 Pedal or an off-board switch such as the MXR Tap Tempo Switch to sweep between two different knob and switch configurations or toggle the fuzz and mono modes on and off. 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.

Review: Fans of Octaver here is a peace ✌️ of cake an expensive one I got to admit but worth it. In my setup it is powered independently with the power adapter that came with the pedal to ensure a noiseless experience. The Lesly effect (and any setting) which can be use with an expression pedal is a big plus for me.
Review: Practico, buen sonido, excelente opción

## Features

- Modern + classic pitch shifting in a single pedal
- Four separate octave divisions, each with its own level control
- Toggle between polyphonic and monophonic pitch shifting
- Add in thick, unruly fuzz inspired by the MXR Blue Box Pedal
- Control various parameters with an expression pedal or tap switch

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09K42XW21 |
| Body Material | Electronic Components, Metal |
| Color Name | Blue |
| Connector Type | 1/4" (6.35mm) Audio Jack |
| Customer Reviews | 4.3 4.3 out of 5 stars (106) |
| Date First Available | 11 February 2022 |
| Hardware Interface | HP-HSC |
| Item Weight | 440 g |
| Item model number | M306 |
| Material Type | Electronic Components, Metal |
| Power Source | Battery Powered |
| Product Dimensions | 14.73 x 12.45 x 7.24 cm; 439.98 g |
| Signal Format | Analog |
| Voltage | 9 Volts |

## Product Details

- **Brand:** MXR
- **Colour:** Blue
- **Item weight:** 0.97 Pounds
- **Product dimensions:** 14.7L x 12.5W x 7.2H centimeters
- **Style:** Bass,Expression,Modulation

## Images

![MXR Poly Blue Octave, (M306) - Image 1](https://m.media-amazon.com/images/I/71U0Uyiuj6L.jpg)
![MXR Poly Blue Octave, (M306) - Image 2](https://m.media-amazon.com/images/I/61lX4xmhoGL.jpg)
![MXR Poly Blue Octave, (M306) - Image 3](https://m.media-amazon.com/images/I/61zTq4mOJaL.jpg)
![MXR Poly Blue Octave, (M306) - Image 4](https://m.media-amazon.com/images/I/51JhmsHo32L.jpg)
![MXR Poly Blue Octave, (M306) - Image 5](https://m.media-amazon.com/images/I/51hMwQYNpJL.jpg)

## Available Options

This product comes in different **Pattern** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***C on 28 May 2023*

Fans of Octaver here is a peace ✌️ of cake an expensive one I got to admit but worth it. In my setup it is powered independently with the power adapter that came with the pedal to ensure a noiseless experience. The Lesly effect (and any setting) which can be use with an expression pedal is a big plus for me.

### ⭐⭐⭐⭐⭐ Review
*by J***I on 10 October 2023*

Practico, buen sonido, excelente opción

### ⭐⭐⭐⭐⭐ Review
*by P***L on 3 May 2024*

Um pedal bastante versátil, aflora a criatividade de quem usa. O fuzz então, é perfeito! Parece que tem um gate junto, pois elimina ruídos. Demorou um pouco para ser enviado, mas não muito. Enfim, melhor aquisição do ano, sem sombra de dúvida.

## Frequently Bought Together

- MXR Poly Blue Octave, (M306)
- MXR Patch Cable, Black, 6 Inch (3PDCP06)
- MXR M83 Bass Chorus Deluxe

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**Shop now:** [https://www.desertcart.jp/products/409626000-mxr-poly-blue-octave-m306](https://www.desertcart.jp/products/409626000-mxr-poly-blue-octave-m306)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-28*