FXC is a wall mounted device designed for remote control of input & zone mix volume level on a connected Ashly FX amplifier.
Each FXC device can control one zone only. For example, the remote control of four zones would require four devices – each assigned to one of the 4 individual zones.
Multiple FXC devices can be assigned to the same zone, although it is not recommended to connect more than eight FXC devices per FX amplifier.