Big Muff for the 21st Century...

The Zander Circuitry American Geek takes all that's great about the classic silicon Big Muff circuit and ramps it up a notch. Combining one of the most popular vintage guitar sounds with modern circuit design, the American Geek needs to be experienced.

Key to getting a great tone with a Muff-style fuzz is the EQ, and the American Geek features a super-tweakable EQ section. Two Shift controls alter the capacitor values in the tone stack, adjusting the filter sweep and cut-off. These controls interact with the Tone control to enable you dial in all versions of the silicon Big Muff - and more.

What's new?

This latest version of the Zander Circuitry American Geek features a more compact footprint, beautiful knurled steel controls, and an upgrade from six to eight options on the signature clipping selector:

  • Germanium: A smooth, sweet sounding form of clipping, very ‘amp-like’ in its response.
  • Silicon: Louder, brighter and more aggressive sounding.
  • LED: Even louder, less saturated but very punchy.
  • Asymmetrical germanium: A more aggressive germanium sound.
  • Asymmetrical silicon: Beefing up the aggression of the silicon sound.
  • Asymmetrical LED: A more aggressive version of the LED sound.
  • MOSFET: Similar to the silicon setting but a bit sweeter, crunchier and a touch more saturated.
  • No  diodes: Loads of output but not much gain.

The pedal features two footswitches, the second of which gives you access to the Blast function - a second channel with an independent volume control and the gain set to maximum. The switches support both momentary and latching switching, meaning that you can temporarily engage a channel by holding your foot down on the relevant switch then releasing it when you're done.


  • Updated version of American Geek fuzz for 2021
  • Top-mounted jacks
  • Gain, Tone, Shift 1, Shift 2, Blast, Level & Diode Selector controls
  • Power: 9V power adaptor, centre-negative (not included).
  • Current draw: 126mA


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