Wade Goeke, owner of Chandler Limited, called this pedal a Colored Boost for a reason! It's not a clean boost, though it's not a fuzz either. The Little Devil Colored Boost can gently color your Fender or drive your old Marshall into oblivion.The soul of the Little Devil Colored Boost is the Class A amplifier design and the selectable Feedback/Bias control. The six presets range from slightly fuzzy to a "in your face" Plexi sound. Each preset has its own style of harmonic distortion and clipping with different effects on a sine wave signal. Soft clipping, hard clipping, clipping on the top, bottom, or both sides of a sine wave, and significant changes in frequency happen with each click of the Feedback/Bias switch. Capable of 39db of boost, the Little Devil Colored Boost can easily range from gentle sustain to screaming vintage.