The GR05 from Allen & Heath is a rack-mountable audio zone mixer designed for installed applications. It features two XLR microphone inputs and three stereo RCA line inputs as well as four XLR male outputs. Each of the inputs can be routed to any combination of outputs directly or via VCA control.Internal or external ducking is also available, including muting. Both ducking depth and release time are assignable. If desired, a second GR05 can be connected and slaved, doubling the amount of I/Os. Level controls for all I/Os can be set for knob or screwdriver control, or the provided hole plugs may be fitted to lock out control.