1U rack-mountable audio matrix with 4 selectable inputs to 5 output zones. An inbuilt media player section features playback from USB media, 3.5mm aux input or Bluetooth. A TR86 touch operated remote wall plate is included to control source and output level for one of the zones. Additional TR86 wall plates may be added up to the full 5 zones as required. Outputs to zones can be monitored via an assignable 3.5mm stereo headphone output. For global alerts and announcements, a front and rear XLR input is provided for a microphone, operated via a paging button that overrides the selected or local audio source for all zones. The RZ45 forms the command centre for installations ranging from basic remote control to a fully specified multi-room audio matrix.