Electro-Harmonix BASS9 Bass Machine PedalThe polyphonic Electro Harmonix Bass9 Bass Machine Pedal transforms a guitar into nine different basses and requires no special pickups, MIDI, or instrument modifications. It relies on the same technology powering all EHX 9 Series pedals, like the award winning MEL9 Tape Replay Machine, but features a new algorithm maximized for transposing one to two octaves down with superior dynamics and tracking. Features A rotary switch allows the user to select