Featuring a dual drive design with lead and crunch channels, separate overdrive circuits and clipping diodes for each channel and a red/green LED display for easy indication of which channel's on, the Boss SD-2 Dual Overdrive brings two overdrives to the table for the price of one. Immensely useful for setting a creamy overdrive on one channel and searing distortion on the other, this pedal can be a noise or garage guitarist's best friend.