MXR M306 Poly Blue Octave

$235.99 to $244.00 Price Tier: Standard

4.0 (2)

1 Critic Review

1 Review

Find out who is using MXR M306 Poly

11 community setups

7 wishlisted

31 saved

Page last updated Jun 12, 2026

Pricing and availability

We compare 600+ stores and found this item at 8 stores. Prices updated June 12, 2026.

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3.5 (15)

$235.99

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4.5 (3)

$235.99

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4.4 (110)

$235.99 New

$207.67 Used (Like New)

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5.0 (16)

$235.99 83 available New

$130.00 25 available Used

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5.0 (5)

$235.99

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$235.99

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4.3 (19)

$245.00 $244.00 $1.00 · All time low

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£219.00

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Average Price: $224

Standard/Professional

$150

$601+

Price Tier

In the Multi Effects Pedals category, MXR M306 Poly Blue Octave is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

Budget

Standard

High-end

Price History

Based on price data from 6 merchants for "MXR M306 Poly Blue Octave". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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The MXR M306 Poly Blue Octave is a fresh and dynamic addition to your guitar setup. This pedal offers a wide array of octave effects that breathe new life into your guitar tones. It's designed for guitarists and bassists who are looking for a straightforward yet versatile pedal to enhance their musical creativity.

The M306 shines with its three distinct octave voices: Bass, 12-String, and Poly. The Bass mode generates a rich bass tone one octave below your guitar's signal, perfect for filling out your band's sound. The 12-String mode doubles your signal one octave up, recreating the chimey sound of a 12-string guitar.

The Poly setting uses MXR's polyphonic octave generator to produce octaves both above and below your original guitar tone. This setting creates a lush, spacious sound with shimmering octaves that add depth and complexity to your tone.

Despite its advanced features, the M306 is user-friendly with a simple interface. It includes Volume, Tone, and Mix knobs to shape your tone, as well as an Octave switch to select between octave voices. The pedal's durable die-cast chassis and sturdy footswitch and jacks are built to withstand the rigors of stage use.

Key Features:

Three distinct octave voices: Bass, 12-String, and Poly
Polyphonic octave generator for lush, spacious sound
Simple interface with Volume, Tone, and Mix knobs
Durable die-cast chassis built for stage use
Can be powered by a 9V battery or optional power supply (sold separately)

Product specs

Pedal Type	Octave, Pitch Shift, Fuzz
Analog/Digital	Digital
Effects	One Octave Up/Down, Two Octave Up/Down, Fuzz, Modulation
Inputs	1 x 1/4"
Outputs	1 x 1/4"
Other I/O	1 x 1/4" (expression/switch)
True Bypass	Yes
Power Source	9V DC power supply (included)
Power Usage	265mA
Height	2.12" (including knobs)
Width	2.62" (including jacks)
Depth	4.37"
Weight	0.82 lbs.

FAQs

What kind of power supply does the MXR M306 Poly Blue Octave require?: The MXR M306 Poly Blue Octave requires a 9V DC power supply and cannot be powered by a battery. It is compatible with power supplies like the Dunlop ECB003 or an MXR Brick Series power supply.
Is the MXR M306 Poly Blue Octave true bypass?: Yes, the MXR M306 Poly Blue Octave features true bypass switching, ensuring that your signal remains uncolored when the pedal is not engaged.
Can the MXR M306 Poly Blue Octave be used with an expression pedal?: Yes, the MXR M306 Poly Blue Octave includes a 1/4" jack for connecting an expression pedal, allowing for dynamic control over its effects.
What effects does the MXR M306 Poly Blue Octave offer?: The MXR M306 Poly Blue Octave provides one and two octave up/down pitch shifting, fuzz, and modulation effects, offering versatile sound shaping options.
How does the MXR M306 Poly Blue Octave differ from a typical octave pedal?: Unlike typical octave pedals, the MXR M306 Poly Blue Octave includes fuzz and modulation effects, allowing for more creative soundscapes in addition to standard octave shifting.

Videos

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JHS Pedals

The Only Octave Pedal You Need?? (MXR Poly Blue Octave)

JHS Pedals

MXR Poly Blue Octave Demo | First Look

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MXR® Poly Blue Octave

jimdunlopusa

THE BEEF! MXR Poly Blue Octave!

Riffs, Beards & Gear

MXR® Poly Blue Octave

jimdunlopusa

MXR Poly Blue Octave - Guitar Pedal Playthrough Demo - No Talking

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The MXR M306 Poly Blue Octave Pedal - This pedal is incredible!

PJ and the Beard

All Playing, No Talking: MXR Poly Blue Octave

astringsuk

Reviews

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PROS

Exceptional tracking in both poly and mono modes
Controls five octaves, plus fuzz, phaser, or Leslie modulation for versatile sounds
Polyphonic capability allows for complex chords and note sequences
Impressive durability, characteristic of MXR pedals
Integrates well with pedal steel and bass, enhancing versatility
Easy-to-use interface despite packed features
Can emulate guitar, bass, and organ sounds effectively
Expression pedal compatibility for dynamic sound control
Fuzz effect praised despite being a secondary feature
Individual knobs for precise dry and effect level adjustments

CONS

Fuzz quality considered basic or overpowering by some
Noticeable latency in poly mode can affect playability
Power consumption is high, requiring careful pedalboard planning
Organ sound tracking sometimes lacks precision
Tone coloration with octave effects described as muddy or synthesized
Some users find the pedal not intuitive for setting desired sounds
Plastic "fuzz" and "mono" buttons feel cheap to some users
Power supply placement may be inconvenient for certain setups
Wireless connectivity issues reported, not friendly towards wireless setups
Manual may not provide sufficient guidance for controlling all features

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about MXR M306 Poly Blue Octave.

Features and functionality

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The MXR Poly Blue Octave allows users to create two presets each containing all four octave tones, switchable via an expression pedal.
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The MXR Poly Blue Octave introduces a "funkyness" to the +1 Octave sound, adding character beyond typical octave pedals.
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Fuzz volume can be adjusted by holding the FUZZ switch and using the DRY knob to set the desired level, enhancing live performance flexibility.
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A normal tap switch can be plugged into the EXP input to toggle the fuzz or mono modes, improving live usability.
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Modulation on the pedal has been described as producing a repetitive "woosh" noise, indicating a potential limitation in its versatility.
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Comparisons

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Some users find the MXR tracks individual notes well with a bass-like sound, but prefer the POG for its superior octave sound quality.
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POG pedals are noted for a soft attack and organ-like sound, while MXR’s octave functions are critiqued for lacking accuracy in both poly and mono modes.
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The POG2 is cited as superior in sound quality and intuitive control, offering presets and swells with a less "digital" sound.
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User experience

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The Poly Blue Octave is praised for its fuzz and modulation effects, which enhance its versatility on an effects board.
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Users report experiencing latency inconsistently, with some finding it problematic enough to remove the pedal from their board.
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One owner experienced a failure where the function light blinks continuously, coinciding with the end of the warranty period.
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Use cases and applications

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The 2 up/2 down octave and wet/dry mix settings are highly appreciated for their versatility and sound quality.
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The pedal effectively enhances sound when used in front of the Mel9, preventing low-pitched note drops common with bass and 9 series pedals.
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Works well as a solo pedal with subtle or fuzzy octave up, particularly effective with a drummer using large kick drums.
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Setup and maintenance

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Optimal placement in the pedal chain is crucial to minimize latency issues with the MXR Poly Blue Octave.
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Critic Reviews

MXR Poly Blue Octave Review - Premier Guitar

premierguitar.com

The MXR M306 Poly Blue Octave expands on its predecessor with a treasure trove of creative possibilities, boasting a plethora of tonal options and intuitive controls. Musicians can enjoy the flexibility of polyphonic capabilities alongside a robust fuzz that stands on its own. However, extreme settings can push your speakers to their limits, making caution necessary. Overall, this pedal is a playground for those willing to explore its wild side, offering unique sounds that can elevate any performance while requiring careful handling to avoid sonic chaos.

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4.0 out of 5

Based on 1 Review and 2 Ratings

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jjandrade

170

almost 4 years ago

3 high quality pedal in 1

I can switch mono on and off to pick an analog sound as Boss OC2 or digital as Digitech Octave. Individual knob for the dry and subs and octaves! clean or fuzz switch. In the end, you can have a clean octabass for solos, an electric organ or a synt bass. I even mentioned the modulation the you can get a tremolo ou chorus that are very good too. I just won't focus on those 2 because I have a respective TC electronic pedal for each one.

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