Pricing and availability

We compare 600+ stores and found this item at 3 stores. Prices updated .

Sweetwater
4.5 (18)
$199.99
Guitar Center
4.5 (5)
$199.99
Reverb
5.0 (39)
$189.99 New
$130.00 Used

Average Price: $180

Standard/Professional

$60

$181+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 2 merchants for "MXR M225 Custom Shop Sub Machine Fuzz Pedal". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Experience a sonic revolution with the MXR M225 Custom Shop Sub Machine Fuzz Pedal. This powerhouse combines the beloved vintage tones of the La Machine Fuzz with a growling sub-octave circuit, offering a dynamic blend of fuzz and octave effects that are both nostalgic and innovative. It's not just about creating sound; it's about sculpting it. With distinct volume controls for both the main and sub-octave signals, you have the power to craft the perfect mix for your musical vision.

The Sub Machine Fuzz isn't just about raw power—it's about versatility. Engage the Series switch to either channel your sub-octave through the fuzz circuit for deep, saturated tones or run it in parallel for a cleaner, dual-layered sound. And when the moment calls for it, a dedicated footswitch lets you unleash an octave-up mode, expanding your tonal range and adding an electrifying dimension to your performance. Whether you're laying down ground-shaking basslines or cutting through a mix with searing leads, this pedal is your ticket to new musical horizons.

Key Features:

  • Combination of La Machine Fuzz with sub-octave circuit
  • Separate volume controls for precise sound mixing
  • Series switch for routing sub-octave through fuzz or parallel
  • Octave footswitch for octave-up mode
  • True-bypass switching to preserve signal integrity when off

Product specs

Pedal Type Octave Fuzz
Analog/Digital Analog
Controls Volume, Fuzz, Sub, Series switch
EQ Tone Control
Inputs 1 x 1/4"
Outputs 1 x 1/4"
Bypass Switching Buffered Bypass
Power Source 9V DC power supply (sold separately)
Power Usage 7mA
Batteries 1 x 9V
Height 1.5"
Width 5"
Depth 3.75"

FAQs

What is the difference between the Series and Parallel modes on the MXR M225 Sub Machine Fuzz Pedal?

The Series mode routes the Sub-Octave signal through the fuzz circuit, creating a thick, harmonically rich sound. In Parallel mode, the Sub-Octave and Fuzz signals are blended separately, allowing for a cleaner, more distinct combination of the two tones.

Can the MXR M225 Sub Machine Fuzz Pedal be powered by a battery?

Yes, the MXR M225 can be powered by a single 9V battery, providing flexibility for musicians who prefer battery operation over a power supply.

How does the Octave switch on the MXR M225 Sub Machine Fuzz Pedal affect the sound?

The Octave switch engages an Octave Up effect, adding a searing high-octave layer to your fuzz tone, perfect for creating cutting leads and solos.

Is the MXR M225 Sub Machine Fuzz Pedal suitable for bass guitar?

While primarily designed for guitar, the MXR M225 can be used with a bass guitar to create unique fuzz and octave effects, although the tonal response may vary depending on the bass and amplifier setup.

What type of bypass does the MXR M225 Sub Machine Fuzz Pedal feature?

The MXR M225 utilizes buffered bypass switching, which helps maintain signal strength and clarity, especially in pedalboards with long cable runs or multiple effects.

jimdunlopusa

jimdunlopusa

MXR Custom Shop Sub Machine

Video thumbnail for MXR Custom Shop Sub Machine by jimdunlopusa

MXR Custom Shop Sub Machine

jimdunlopusa

jimdunlopusa

Video thumbnail for Review Demo - MXR Custom Shop Sub Machine Octave Fuzz by Premier Guitar

Review Demo - MXR Custom Shop Sub Machine Octave Fuzz

Premier Guitar

Premier Guitar

Video thumbnail for NAMM 2015: MXR Custom Shop Sub Machine Fuzz (CSP210) with Bob Cedro and Bryan Kehoe by sillennium

NAMM 2015: MXR Custom Shop Sub Machine Fuzz (CSP210) with Bob Cedro and Bryan Kehoe

sillennium

sillennium

Reviews

PROS

  • Tracks beautifully with mighty sound, perfect for rich audio experiences

  • Unique octave up/down features enhance sonic versatility

  • Offers optional fuzz for tailored sound customization

  • Priced lower than comparable fuzz pedals, offering great value

  • Bendable sub-octave allows for varied tonal expressions

  • Capable of producing a vintage fuzz sound with modern versatility

  • Works exceptionally well with high-gain amps for powerful output

  • Versatile in routing options with series or parallel configurations

  • Superior control and expression adjustments for diverse soundscapes

  • Delivers outstanding performance on bass guitars

CONS

  • Less suitable for traditional band settings

  • Not compatible with certain amp brands like Fender or Vox

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about MXR M225 Custom Shop Sub Machine Fuzz Pedal.

Comparisons

  • The Sub Machine uses a Foxx Tone Machine style fuzz circuit, while the Poly Blue Octave employs a Blue Box type fuzz circuit, offering different tonal options.

    Source

Features and functionality

  • The M225 version is the newer iteration of the pedal, distinguishing itself from the CSP 210, which is labeled with "custom shop" text but may not differ internally.

    Source
  • The pedal offers versatility with options to run sub octave through high octave or in parallel, providing a wooly sub octave tone.

    Source
  • Sub octave is polyphonic for two or three notes, making it suitable for power chords but can sound white noisy.

    Source
  • The tone knob potentially affects each band (sub octave, main tone, upper octave) separately, allowing for detailed tonal tweaking across different sound layers.

    Source
  • The octave up is footswitchable, allowing for easy activation during performances, but users wish the sub octave also had a dedicated switch for greater control.

    Source

Use cases and applications

  • Despite not often using fuzz effects, some players find the Sub Machine offers a unique and enjoyable sound, suggesting it's suitable for those seeking a distinct fuzz flavor.

    Source
  • Running an overdrive before the Sub Machine enhances the sub octave's thickness, especially when the sub octave runs in parallel with the fuzz.

    Source
  • The pedal excels in creating intense, doomy sounds when combined with a fuzz face and adjusting the guitar volume to an overdrive level.

    Source

User experience

  • Users found the octave up feature works well for single notes but produces poor results with chords, especially complex ones like the Hendrix chord.

    Source
  • Some users find the octave up feature lacks smoothness, even with the tone knob fully adjusted, and suggest pairing it with a drive pedal for a smoother sound.

    Source

Critic Reviews

MXR Custom Shop Sub Machine Octave Fuzz Review - Premier Guitar

premierguitar.com

The MXR M225 Custom Shop Sub Machine Fuzz Pedal delivers a wild ride from grunge to grandeur, offering both raw fuzz and refined tones with its versatile control set. Its killer basic fuzz voice captures the essence of the '60s and '70s with a silicon edge, while the octave-up adds a sizzling Octavia-like harmony. Though the sub-octave can sound artificial at higher levels, the series switch helps integrate it seamlessly into the mix. This pedal may not please everyone due to its less dynamic nature, but its raunchy charm and sonic surprises make it a standout for fuzz aficionados.

positive

Based on 0 Reviews and 0 Ratings

5 star
4 star
3 star
2 star
1 star

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

More MXR Fuzz Effects Pedals

Accessories & Related Items

Artist usage

Community setups

Similar

Gear Guides