Bosch PVA-4CR12 System controller for audio processing, routing and supervision of a PAVIRO system, Public address and emergency sound system control unit, Control and routing of 4 simultaneous audio channels, One controller supports 12 zones, expandable up-to 492 zones with 24-zone routers, supports up to 16 call stations, Four controllers can be networked using OMNEO interface module, EN 54-16 system certification.

Bosch PVA-4R24 Router, 24-zone expansion unit for PAVIRO system, One router can handle up to 4000W speaker load., max 500W per zone, 20 GPI, 24 GPO and 2 control relays, Up to 20 routers per controller, EN 54-16 system certification.