3 sets of stereo analog inputs and 2 sets of S/PDIF digital inputs * 3 sets of stereo speaker outputs with Select switches and trim pots * Passive audio path with no op amps or IC"s * Onboard talkback microphone and talkback input * Dual 30-segment, fast-acting, peak-hold LED metering. Remote controllable via included Control Station Remote (CSR-1)