The Cusack Screamer is a clean overdrive with about twice the gain of a typical tube screamer. It offers much more clarity than a typical overdrive. You can actually hear the individual notes of complex chords that would normally be buried. The Clip Selector allows you to select either the Standard, Crushed, or Assymetrical LED clipping! And with the new LED Clip-O-Meter, you can now SEE your guitar clipping! Whats more, if you drive it hard with another pedal, you can use it as a strobe tuner. Just hit your 5th fret, and the next open, just as you would tune by ear. When the Clip-O-Meter stops blinking, you are in tune!