Introducing the Balls Powerful Booster! What we have here is a recreation of the famous Colorsound Power Boost of the late sixties. The circuit provides a huge volume boost to push your amp into lush, smooth distortion. Coupled with the boost is a tone control circuit that allows for big booming bass, and bright, glassy highs. The tone control is a boost/cut type and leaving the controls in their middle positions results in a basically flat response. Turning each one down or up results in a respective cut or boost of that frequency. The Powerful Booster also uses the original 18V power supply using two 9V batteries to provide increased boost capability. There is also a normal external power jack to accept standard, center-negative pedal power. Using this jack, the Powerful Booster can be run off of a normal 9 volts, as one would with a standard pedal, and the only affect is a little bit less boost.