Technological slave digital matrix with 2 amplifiers of 500 W each, split equally over 2 audio zones (max. 500 W per zone). There are two general system status LEDs on the front panel, plus LEDs for the status of local zones. On the back of the matrix are 2 dedicated inputs per individual zone (4 in total) used to send local messages, terminals for the connection of the backup amplifier, and 4 RJ45 ports for connecting the BUS in cascade between the matrices (2 IN and 2 OUT). This technological matrix also incorporates an Inputs / Outputs module (8IN or 4OUT, programmable as desired and can be changed with 2 to 1 ratio; the outputs are open collector type) and 2 RJ45 type AUX inputs for the connection of music remote control modules Art. 49CRM503. 24 VDC power supply input. Height 2 modular units. Approved to EN54-16.