The uncharacteristically tongue-and-cheekily-named Brotherdrive by J. Rockett is an original overdrive circuit that's incredibly versatile for a three-knob stompbox. The Brotone knob can alone confer a variety of qualities to the overdriven sound affecting both high end and the character of the overdrive. https://www.youtube.com/watch?v=d86H-QgXdp8Click on the title for more