Three stage priority mute expansion module. It will mute low prioirty channels dependant on signals deteced on high priority inputs. Three priority options are available,

• Channel 1 has priority over all channels
• Channel 1 has the highest priority, channel 2 has next priority then channel 3
• Channel 1 and 2 have the highest priority then channel 3

Compatible with the following devices – MX61, MX81, MX82 ( 2 required) , MX883 ( 2 required)