This Xotic AC Booster pedal is a workhorse, doing the one job it was designed to do with precision. The active Treble, Bass, Gain, and Volume controls let you effortlessly dial in tones, from soft boosts to very convincing distortion pedal mimicry when the super wide range Gain control. It offers a transparent 20dB+ clean boost and a +-15dB 2 band active EQ. This proves to be a great solution to sound degradation caused by long instrument cables or effect chains, and the AC Booster comes with true bypass, further eliminating signal loss. Can be used with AC adapter (optional) or 9V Battery.