Slave digital matrix with 2 amplifiers of 500 W each, split equally into clusters of 2 + 2 audio zones (max. 500 W per cluster). 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 (8 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). Height 2 modular units. Approved to EN54-16.