ZVEX Silicon Fuzz Factory 7 Mod

Squealing, sputtering and shrieking—the ZVEX Fuzz Factory 7 is a box of noise disguised as a fuzz pedal. But even that wasn’t enough for the left-of-field pedal company. It’s just released a limited-edition Silicon Fuzz Factory 7 Mod, which swaps out the original’s NOS germanium transistors for PNP silicon ones.

The result, according to ZVEX, is a “brighter, tighter and more synthetic-sounding” fuzz. The new transistors give the Silicon FF7 a completely different tonal palette and oscillation textures, from raspy robotic voices to ring modulation-esque gurgles.

Otherwise, the Silicon FF7 is identical to its germanium sibling. There’s a nine-position rotary switch that toggles between fat and reed-thin sounds, six other knobs to govern parameters such as compression and feedback, and a footswitchable “Tone” circuit that mellows out the high frequencies.  

Hear it in action here:

The Silicon Fuzz Factory 7 Mod retails for $499. More information at zvex.com.