The Allen & Heath AR84 is an Expander AudioRack for the GLD digital mixing system. Each AR84 adds 8 XLR inputs and 4 XLR outputs to a GLD system. Up to two AR84s can be added to a GLD system, connected to an AR2412 AudioRack and / or direct to the GLD-80 mixer. Connection is over Cat5 cable running Allen & Heath’s dSNAKE protocol, allowing the AR2412 to be positioned up to 120m from the GLD-80 or GLD-112 mixer. dSNAKE provides control to the remote preamp, and all mic preamps are scene recallable.