ON/OFF SWITCH: turns pedal on and off.
FLANGE SWITCH: Controls the up-sweep and down-sweep of the flange effect. When this switch is pressed down, the flange effect sweeps upward. When the switch is released, the flange effect sweeps back down. Essentially, this switch simulates applying pressure with yourthumb on the “flange”, creating the flanging effect. In subtractive mode, holding down the momentary switch will eventually cause the two signals to cancel out when they’re delayed by the same amount, and out of phase.
GAIN TRIMPOT (INTERNAL): Controls the overall gain of the Zero Point. It’s factory-set for a very slight bump in volume when the pedal is engaged. Because this trimpot is accessed from the back of the pedal, the control range appears reversed: turn left to increase gain, turn right to decrease gain.
9-18v center-negative DC only.