MXR SF01 Slash Octave Fuzz Review (June 2024)


Last updated on June 10, 2024 4:06 am Details


In this review post, we’re going to be discussing the MXR SF01 Slash Octave Fuzz, including an overview of its unique features.

Product Description

Two legendary and timeless icons of rock music—Slash and MXR—have teamed up to deliver the Slash Octave Fuzz. It features a searing Fuzz tone coupled with a separate Sub Octave voice and an Octave Up Fuzz, all for thickening up your tone with a sinister growl. With an array of external and internal controls, there are numerous ways to combine the main Fuzz effect’s thick ’70s shag and the chainsaw grind of the Octave Up Fuzz with the warm growl of the Sub Octave. Internal Gain and Tone pots shape the Octave Up Fuzz effect. Featuring custom Slash artwork and a distressed hot-rod paintjob, the Slash Octave Fuzz features all-analog circuitry, true hardwire bypass, and comes in a heavy-duty housing with durable jacks and switches.

Product Features

  • Fuzz and octave
  • Switch for on and up
  • Hardwire true bypass
  • Knobs for volume, tone, fuzz, octave sub, octave up

Pros & Cons


  • Strong build quality
  • Affordably priced
  • Extremely reputable
  • Positive customer feedback
  • Value for money
  • Excellent audio output


  • Rough note tracking
  • Brash (upper mids and highs)

MXR SF01 Slash Octave Fuzz Demo

Our Verdict

The Slash Octave Fuzz can produce monstrous sounds, but it’s not always easy to control in more limited applications: When I used the sub-octave function without fuzz, I needed to set the volume to 4 o’clock to achieve unity with my bypassed signal. I’d rather have the volume set at noon than being surprised by sudden spikes. When the octave is more pronounced, the fuzz tones may also lack a certain natural compression that could have warmed them up a bit and made faster notes sound more distinct. Nonetheless, this pedal, like the man himself, is full of attitude, defiantly edgy, and completely capable of making any amp scream as you’ve never heard before.

Where to Buy

The best place to buy this product has to be Amazon, due to their competitive pricing and fantastic customer service.

MXR SF01 Slash Octave Fuzz

as of May 24, 2024 1:37 am

Pricing History

Price History for MXR SF01 Slash Octave Fuzz


Current Price $169.99 May 24, 2024
Highest Price $169.99 December 29, 2023
Lowest Price $169.99 December 29, 2023
Since December 29, 2023

Last price changes

$169.99 December 29, 2023

as of May 24, 2024 1:37 am
Last updated on May 24, 2024 1:37 am

Buyers Guides This Product Is Featured In

Best Guitar Effects Pedal

Best Fuzz Pedal

Best Fuzz Pedals Under $150

Additional information

Item Weight

1.16 pounds

Product Dimensions

3 x 5 x 4 inches

Domestic Shipping

Item can be shipped within U.S.

International Shipping

This item can be shipped to select countries outside of the U.S. Learn More

Country of Origin


Item model number


Is Discontinued By Manufacturer


Date First Available

March 9, 2013

Color Name



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