FX Doctor Ducky Envelope Filter

Description

Lots of features on this thing to keep you busy for hours. Works great with distortion as well. This one has sensitivity, attack, and range knobs as well as a decay rate switch and a filter up/down switch. One LED is for on/off, the other is for input level. It's true bypass and has an AC adapter jack in the back. Comes in two different paint options, reliced flame as shown, or just a normal green rectangle on top.