The Source Audio Soundblox Pro Multiwave Distortion is an in-depth, highly-inclusive pedal that houses 23 distortion effects that you can tweak and reprogram to your heart's content. With a 7-band graphic EQ, six programmable presets, and input for MIDI and an expression pedal, the Pro Multiwave Distortion packs a ton of punch for its size, even offering multi-band and single-band processing to process individual frequencies or your entire signal. Any way you use it, the Source Audio Soundblox Pro Multiwave Distortion is incredibly versatile for its size.