Allen & Heath AH-AR2-84-BLK Model AR84 Expander AudioRack Interface, Black, Adds 8 XLR Inputs and 4 XLR Outputs to a GLD SystemThe AR84 is an expander audio interface rack for the Allen & 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.Key FeaturesAdds 8 XLR inputs and 4 XLR outputs to a GLD systemUp to two AR84s can be added to a GLD system, connected to an AR2412 AudioRack and / or direct to the GLD-80 mixerConnection is over Cat5 cable running Allen & Heaths dSNAKE protocol, allowing the AR2412 to be positioned up to 120m from the GLD-80 or GLD-112 mixerdSNAKE provides control to the remote preamp, and all mic preamps are scene recallableDimensions 24.0″ x 13.5″ x 7.5″Weight 10.8 Lbs