Vintage fuzz tone—refined for modern rigs. The MXR Classic 108 Fuzz (M173) packs the unmistakable sound of a BC-108 silicon Fuzz Face® into a pedalboard-friendly MXR enclosure, delivering thick saturation, smooth sustain, and dynamic cleanup with your guitar’s volume knob.

What sets it apart is the built-in Buffer switch, allowing this classic fuzz circuit to play nicely with wah pedals and more complex signal chains—something traditional fuzz designs struggle with.

Key Features

• BC-108 Silicon Fuzz Circuit – Classic Fuzz Face-style tone with tight low end and aggressive sustain

• Buffer Switch – Maintains tone integrity when used with wah pedals or long signal chains

• Simple Two-Knob Layout – Fuzz and Output controls for easy dialing

• Dynamic Response – Cleans up with your guitar’s volume knob

• Rugged MXR Housing – Built for consistent performance on stage or in the studio

Why the M173 Stands Out

The MXR Classic 108 Fuzz captures everything players love about vintage fuzz—then fixes one of its biggest limitations.

Traditional fuzz pedals can be picky about placement, especially with wah pedals in front. The Buffer switch solves that problem, giving you:

• Seamless wah + fuzz interaction

• Consistent tone across your pedalboard

• More flexibility in signal chain placement

Whether you're chasing vintage Hendrix-inspired tones or pushing your amp into saturated bliss, this pedal delivers raw, expressive fuzz with modern reliability.

Dial In Iconic Fuzz Tones

• Roll back your guitar volume for cleaner, glassy tones

• Crank the fuzz for thick, sustaining lead tones

• Pair with a wah for classic psychedelic textures

• Use it to push your amp into rich, harmonically complex overdrive

This is a fuzz that responds to your playing—not just your settings.

Specifications

• Product Name: MXR Classic 108 Fuzz

• Model: M173

• Type: Fuzz / Distortion Pedal

• Controls: Fuzz, Output, Buffer Switch

• Circuit Type: Silicon (BC-108 transistor)

• Power Options: 9V battery or 9V DC adapter

• Format: Standard MXR enclosure

Power Supply Compatibility

• Powered by 9V battery or Dunlop ECB003 9V Adapter

• Compatible with DC Brick™, Iso-Brick™, and Mini Iso-Brick™ power supplies (sold separately)

Important Notes

• ⚠ Power supply and battery not included

• ⚠ Buffer switch recommended when running wah before fuzz

• ⚠ Designed for standard 9V DC center-negative operation

Why Buy From British Audio

At British Audio, we know fuzz pedals aren’t all created equal. The MXR Classic 108 Fuzz delivers true vintage tone with modern usability, making it a standout choice for players who want classic sound without the typical limitations.

If you're after a Fuzz Face-style pedal, silicon fuzz, or a fuzz that integrates cleanly into your rig, the M173 is a proven performer.