VOLUME MODE: Two different signals, or a stereo output of a synthesizer, may be applied to the inputs. The signal at input A will pass to output A at full volume when the pedal is fully depressed. Gradually backing off the pedal will likewise decrease volume until the top position is reached. In this position the volume will be at a level previously set by the minimum volume control. At the lowest setting of this control no signal is passed. Channel B will perform identically, sharing the same pedal but remaining discrete.
BALANCER MODE: In this mode the throw of channel B is reversed from channel A. When the output of A is full, B is at the minimum, and vice-versa. There are many practical and creative applications for this mode.