The Rane AD 22d is a fully balanced two Input, two Output audio alignment Delay providing a range of 1.50 to 999.99 milliseconds on each Output. The Delay of each Output is independently adjustable in 10 microsecond and 1 millisecond increments. 24-bit audio converters provide excellent sound quality. Each Output has two nonvolatile Memories (no batteries required), A and B, for easy access to previously stored Delay values. Remote Recall screw terminals on the rear accept external configuration switches, permitting independent remote recall of the Memories.