Pro Tone Spitfire Pro Tone Spitfire The Pro Tone Spitfire is a distortion pedal for a full range of rock to metal and all points in between. The Spitfires dynamics range from a soft clipped distortion all the way to a hard driving, speaker searing crunch with just a few tweaks of the controls. Recreate some of the most modern, retro or classic sounds or create something unique and new. New for 2005 is the Spitfires tone control. Most distortion units feature hi boost/cut tone circuits, the Spitfires new tone control acts more as a low range boost/cut. In addition, the Spitfire now features the magical mojo of the JRC4558 IC chip. Adding up to one killer pedal.