function f(x)

Function f(x), LLC

Tone Integrated Musical Machines

All of the Tone, None of the Pixie Dust

Home of the Clusterfuzz, Third Rail, Parallax, Accufunkture, Gate Crasher, Clusterfuzz Jr., The Cannon Dual Fuzz
If you have questions about your Function f(x) pedal, or if you need to reach us to discuss repair service or other product support needs, please send us an email at or fill out our Contact Form. We will get back to you as fast as we can (usually within 24 hours).

Behold: the Clusterfuzz. A tweaker’s delight, the Clusterfuzz pedal is capable of delivering medium-gain overdrive up to raunchy square-wave fuzz tones. Unlike finicky vintage fuzz boxes (or their slavish modern clones with drifting bias and loose tolerances), the Clusterfuzz operates consistently and reliably by utilizing modern components and stable bias. In fact, it is not patterned after any existing classic or modern “boutique” fuzz pedal. It has its own flair and unique set of controls.

The Clusterfuzz pedal delivers sounds that cut through the mix, with its multiple tone shaping and clipping options. Whether you are seeking a more refined fuzz or a “wall of guitar” sound, this beast of a dirtbox will satisfy those in need of a great fuzz sound with a lot of added tonal flexibility.