The WHORES. Fuzz Freq is a collaboration between IdiotBox and the KILLER noise rock band WHORES. from Atlanta, GA.
The rad thing about this is that you can switch which effect runs into the other. Toggle switch to the left and you've got fuzz into filter. Switch to the right and its filter into fuzz.
The left side controls the fuzz, the center knob controls the volume, the right side controls the filter frequency. There is also an internal trim pot to control the gate of the fuzz.
This thing fucking CRANKS and is a total sonic monster!!!
It is two effects in one. A gnarly 80s Russian germanium transistor fuzz and a wah style filter that can be used together or separately.