The SFX-01 was our first foray into the world of effects pedals.
But measured by the amazing reception you gave it, it won't be our last.

application
The first effects pedal designed specifically to work together with the pickups in a guitar to achieve optimum gain and resonance for all tonal applications. Works with all musical styles.

description
By turning the gain control knob you can add pure, flat-EQ gain, ranging from 6dB to 25dB! The Resonance Switch drops the resonant peak of a single coil pickup up to 5KHz, making a single coil sound like a full and fat humbucker. Features fully discrete Class A circuitry along with true bypass. Comes in a heavy-duty steel chassis and runs on a single 9 volt battery.

of note
For Resonance Switch to work properly, the SFX-01 must be first in the signal chain using passive pickups and a standard guitar cable -- not a wireless unit.

players
Michael Landau, Peter Stroud & Todd Wolfe / Sheryl Crow Band, Richard Evans & David Rhodes / Peter Gabriel, Gary Rossington, Rickey Medlocke & Hughie Thomassen / Lynryd Skynyrd, Greg Hetson / Bad Religion, Phil Campbell / Motorhead