ANClean booster. A deep and wide world is spreading to pedals that simply raise the volume of the guitar sound. Raise the volume without distorting the sound itself. Increasing the volume increases the signal level sent to the amp and subsequent effectors. As the signal level increases, the strength of distortion and the ease of distortion differ with the volume. Furthermore, the edges and balance of each band, including the overtone components, change slightly, which has various effects on the overall guitar sound.