Skip to content

Flare (Legacy)

Based On
ZVEX® Fuzz Factory
Effect Type
Build Difficulty

Legacy PCB

Designed for the 1590B enclosure with side-mounted jacks, which some builders prefer. Bypass PCB (optional) sold separately.


In stock

Updated Version

This project is in the queue for a redesign in the updated 125B format, but it's not yet available. Sign up for our mailing list to be notified of new releases.

Project overview

If the ZVEX Fuzz Factory doesn’t have enough knobs for you, or if you aren’t a fan of the trademark sideways orientation, the Flare project allows you to build a clone with eight knobs instead of the original five—and it all fits in a 1590B, too. Here are the new pots you can use:

  • Body: Blends between two input capacitors (a 10uF and a 100n) to control the amount of bass that is let into the circuit.
  • Soft: This is a pregain control that allows for adjustment of the feedback resistor on the first transistor. By dropping the value of this resistor, the circuit transforms into more overdrive or distortion territory than full-on fuzz insanity. In Version 1.1, a minimum value resistor was added to this control to prevent it cutting out in the last 20% of the rotation.
  • Tone: This is a “Stupidly Wonderful Tone Control” (SWTC) that’s been appended to the circuit. The Fuzz Factory can be a bit bright, so this helps take the edge off.



Project Documents