100W into 25V/70.7V and 4Ω Loads Rear Mounted DIP Switch Allows Mute Receive for Inputs 2 and 3 Contact Closure Mute Terminals Variable Mute Sensitivity Control for Input 1 Preamp In for External Processors Line Output Remote Input Select (RIS) Remote Level Control Input Assignable Zone 2 Output Two Unbalanced, Summing Line Level Inputs Two Balanced Mic/Line/Tel Inputs w/ Phantom Power Automated Diagnostic System Test (Push Here Diagnostic®) Optional Rack Mount Kit Available, Model AARMK2-5