Jam Boomster *used Mint condition*used Mint Condition A transparent silicon Booster pedal. The Boomster will cleanly boost your signal and give you a huge tone! It can be used to fatten up your existing sound or boost you up for solos. You can adjust the gain of the pedal with an internal trimmer. The higher the trimmer is set, the more output and gain you get. To get the cleanest possible sound, you set the trimmer all the way to the right (default setting). The Boomster can also be