Its design was conceived, in part, by Robert Moog himself, and is the last instrument to have that distinction, although the primary engineer was Cyril Lance.

Aside from a few cosmetic differences (and price), all units have nearly identical sound generation circuitry and controls.

The later 'Stage Edition' featured orange and red lighting, grey rubberized panels and the classic Moog logo replacing the signature.

The third version, called the Stage II, had some minor mechanical and electrical tweaks as well as adding a USB interface, a new arpeggiator and tap tempo.

There is also a rare limited edition with blue LED lighting that came in a purple aluminum case.