Mad Professor Simble Overdrive

The ultimate in transparency, the Mad Professor Simble drive delivers the most organic overdrive you can imagine. Use it as the cleanest boost, for a little tube-like tone sweetener, or a crunchy overdrive. The sensitivity of the Simble is unmatched and can be controlled with the Sensitivity Knob; tweak the rest of your tone with the Level, Accent, and Contour knobs.