Master digital matrix capable of managing the entire Comelit Logirack unit. It incorporates a CPU board for system management, 3 amplifiers of 500 W each, 2 of which are capable of managing the 2 local audio zones (max. 500 W per zone) and the other for use as a backup amplifier for the whole system. On the front is a PTT microphone for emergency voice communications, 1 USB port (micro-b type) for procedures such as writing a configuration file using Sound Manager software and reading the event log, 3 LEDs indicating the general status (mains voltage, alarm, fault) and a 4.3” colour touch display offering the basic commands for managing the whole system and a full and clear view of overall statuses as well as the status of all connected peripherals, thanks to the intuitive icons and colours used. On the back, the matrix incorporates 2 inputs for sending general messages, 4 zone inputs (2 per zone), 1 RJ45 port for microphone BUS, 2 relay outputs for general alarm and fault, 2 general RCA type AUX inputs for replaying audio sources. The matrix is also equipped with a network card that allows connection to other Logirack units, supporting up to 32 linked units (maximum total distance: 500m. For longer distances, use converters 49TCM142/49TCS142). Height 2 modular units. Approved to EN54-16.