Three knobs cover the whole pedal. Reverb sets the wet level up to an equal mix with the dry signal. Decay sets tail length, and Sway adds the proprietary modulation that bends the reflections as they fade.

With Sway turned off, SuperMoon works as a plain room-to-cavern reverb. Turned up, the long tails drift in pitch as they decay. The circuit is also designed to sit after distortion.

Switching is true bypass, so reverb tails stop when the pedal is turned off. Each unit is built by hand in Portland, Oregon. Related versions include SuperMoon Chrome and the stereo SuperMoon Eclipse.