Introduction AR84 is an 8 XLR input, 4 XLR output AudioRack. Adding an AR84 to your Qu system lets you position some of your I/O up to 120m from the Qu mxer, connected over a single Cat5 cable running Allen and Heath’s dSNAKE protocol. dSNAKE provides control to the remote preamp, and all mic preamps are scene recallable. The AR84 is an expander audio interface rack for the Allen and Heath GLD and Qu digital mixing systems. It provides 8 remote controlled mic/line preamps and 4 XLR line outputs. Up to two AR84 AudioRacks can be added to a GLD system. The AR84 can connect directly to the mixer or to the AR2412 AudioRack to expand the number of system inputs and outputs. The AR84 is simply an audio interface. It cannot be used by itself. It must connect to the GLD or Qu mixer which is where the audio is processed. The AR84 is not compatible with Allen and Heath iLive Series components or ACE connection. Refer to the GLD User Guide AP8561 and Qu User Guide AP9372 for instructions on connecting and using the AR84 with your system.