KILROY is a versatile distortion circuit with tons of headroom and a simple EQ switch. Fat gives you an in-your-face vintage style EQ, while the BIG setting opens the floodgates on the low end (try it with a downtuned bass, I dare you!). KILORY's breakup depends on the output of your pickups and settings on your volume knob. With low-output pickups, the KILROY! acts as a clean boost. With higher output pickups, the KILROY acts as an amp-in-a-box, giving you the sound of a cranked amp, but with the ability to run it from whisper quiet up to line level.