The JB-2 Angry Driver features three dual-concentric knobs that provide independent drive, tone, and level control for each overdrive type. Via a six-position mode selector, you can use each overdrive independently, or combine them together in series and parallel configurations. With the ability to blend the Blues Driver’s famously expressive low-to-mid gain tones with the Angry Charlie’s aggressive rock voice in any combination, the JB-2 Angry Driver delivers unmatched range and versatility from a single overdrive pedal.