A UNIQUE STEREO CHORUS The CH-1 Super Chorus pedal delivers a clean classic chorus sound with crystal-clear highs and a unique stereo effect, variable between left and right speakers. Boss CH-1 Super Chorus Guitar Effect Pedal Features : - Classic BOSS chorus pedal with clean, brilliant sound for guitar and keyboards - Effect Level, EQ, Rate and Depth knobs allow for precise shaping of sound - Features Mono input and Stereo outputs for connection to dual amps