MXR M225 Sub Machine Octave Fuzz Pedal

Fuzz/Octave Guitar Effects Pedal with Independently Switchable Octave Up Effect and Parallel/Serial Switch for Octave Down Fuzz Processing
4/5 5 Write review Item ID: SubMachineFuzz
MXR M225 Sub Machine Octave Fuzz Pedal image 1
MXR M225 Sub Machine Octave Fuzz Pedal image 1
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MXR M225 Sub Machine Octave Fuzz Pedal
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Satisfying Fuzz Meets Killer Octave Effects

Unleash waves of frothy, shaggy fuzz tone with the MXR SubMachine guitar effects pedal. It's the perfect combination of the La Machine Fuzz with MXR's tried-and-true sub octave circuit - just what you need for absurdly heavy tone. Dial in the ideal fuzz and even kick in an octave up when the mood strikes you via a dedicated footswitch. The actual Octave control puts the sub in SubMachine, allowing you to roll on as much sub-octave thickness as you like. What's more, the SubMachine includes a Series switch, which lets you run the sub octave either through the fuzz effect or keep it clean by running it parallel. If you dig the Blue Box the way many of us at Sweetwater do, then you're going to love the SubMachine.

MXR Sub Machine Octave/Fuzz Guitar Pedal Features:
  • A brilliant combination of the MXR La Machine Fuzz pedal with sub-octave circuitry
  • Separate volume controls for main volume and sub octave let you dial in an ideal mix
  • Series switch toggles wether sub octave signal goes through the fuzz circuit
  • Octave footswitch kicks fuzz signal into octave up mode for a wider tonal spread
  • True-bypass switching preserves signal when effect is off
Get massive fuzz and glorious sub-octave growl with the MXR Sub Machine!

Additional Media

MXR Sub Machine Octave Fuzz Pedal Demo by Sweetwater Sound

Tech Specs

Pedal Type Octave Fuzz
Inputs 1 x 1/4"
Outputs 1 x 1/4"
Manufacturer Part Number M225

Customer Reviews

Based on 5 reviews
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Favorite Octaver

Now this is what I always wanted with Octaves. A HUGE Sub octave, one that shakes the floor. Most octave pedals out there are weak. Not the case here. This pedal commands attention. I love this and the MXR Blue box. This is more predictable, tracks better and has a huge sound. But is less glitchy than the blue box. This may be desirable depending on what you are going for. I'd definitely recommend this one. It is hours of fun whenever I plugin to it.

Fuzz Octave: Beast Mode Activated!

I got the Sub Mahcine in the beginning of last week. I wanted some time to fool around with it, before writing a review. I had some time over the weekend. All I have to say is...The name says it all. It truly is a beast. The tone is beefy and tasty. There really is no way to explain it though. As good as the videos are, they really don't do it any justice. Just buy it and you'll definitely enjoy :) Btw...I bought mine to use on bass ;)
Music background: Audio Engineer, Musician

Crushing Octo-fuzz

Great fuzz tone with some fun octave up and down options. Was exactly what i was looking for. The option to run fuzz/octave in series or parallel is great.

Love The Machine Gun!

The Machine Gun has a smooth but beastly octave tone. I really love this pedal. I have a large collection of fuzz pedals, this one really stands out. I typically hate octave fuzz. Most octave fuzz effects I have tried sound like someone farting into a microphone that's run through a distortion pedal. So why did I buy it? I admit, I wanted to be the first kid on the block to have it since it was just introduced at NAMM. But mostly because it was only 10 or 20 dollars more than the MXR classic fuzz, and I thought I'd be able to "dial down" the octave effects and get a straight fuzz. I thought I was getting 2 pedals for the price of one. I was wrong, even at the lowest settings I still get a subtle but noticeable octave effect. This is not a problem! It has a very unique tone of its own and I crank it up loud and proud! I highly recommend it.
Music background: Jack of All Trades, Master of None

Yes, please.

Great fuzz and I love the octave down and up at the same time. Wish it was a little more polyphonic.

Sweetwater Advice

MXR Custom Shop Sub Machine Octave Fuzz

Obscene as the Sub Machine can be, it is ultimately a very clever and imaginative bit of fuzz design that's musical in applications way beyond filthy caveman riffage. While MXR has built similar pedals, the Sub Machine brings a sassier, classier, and more '60s-tinted fuzz voice to the mix. For anyone willing to dig deep into the tone shaping potential of this potent purple machine, a world of sonic surprises awaits....
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See also: Distortion Pedals, MXR, MXR Distortion, Overdrive, Boost & Fuzz, MXR Harmony Processors