Ever use a volume pedal or your volume knob to clean up a pedal such as a single channel amp? You know how good it sounds, but you just can't get the right volume with the volume pedal or you can't get to your volume while playing? Get a scalpel! The Scalpel cuts your signal to where you set the knob to allow instant switching to the correct volume without the guesswork. Special treble preservation circuit keeps your high end from sounding muted when you turn the volume down. All models are True Bypass to preserve your tone when off.