Got this one from http://www.tunnelvisionmusic.com/132.html . Can't pronounce it worth a hoot, but it's still a cool pedal! Here's how they describe it: A unique booster/overdrive pedal, the Onomatopoeia can be used to raise the volume of an instrument to higher or "solo" level. Because of the addition of a Gain control, it can also be used to distort the original signal in the same manner as a tube amplifier when it first begins to overdrive.