A RAD16z is an alternative to standard switch boxes for impractical areas such as in stage floor pockets or above ceilings. Its form factor is a rugged metal box with flexible surface mounting options. The RAD16z is plenum-rated UL 2043. It contains two balanced Mic / Line / Line-Plus inputs and two balanced line outputs on Euroblock connectors. Line-Plus allows an unbalanced stereo source to connect to a single balanced input and be mono’ed. Inputs are individually software switchable to Mic, Line or Line-Plus. The Halogen software can enable 24V phantom power for a condenser mic on either input. Two Logic Inputs and Outputs interface other devices to HAL with toggles or commands, such as push-to-talk or mute switches, projectors, lights, alarms, etc. Logic In connects a device contact switch between pin 1 or 2 to ground. Logic Outs are 5 V high or 0 V low. Galvanic isolation prevents current flow between the RAD and host technical grounds from interfering with audio.