Quickly and easily audition multiple stereo sources and switch between three sets of reference monitors, all from your desktop.This professional desktop studio-control system manages three stereo line-level sources, a stereo S/PDIF digital input, three sets of monitors, and four sets of headphones. Easily manage multiple sources and monitor speakers from your desktop with three sets of stereo, line-level inputs, a stereo S/PDIF digital input, and three pairs of speaker outputs. You also get Main Mute, Mono, and Dim; main and cue outs; four loud headphone amplifiers; and a talkback mic.