The Russound A-LC3 is an in-wall local source input module used with A-BUS hubs and controllers in a distributed audio system. An A-LC3 in a room lets a local source or portable audio component be heard over the rooms speakers independently from other rooms in the A-BUS system. The A-LC3 connects between the A-BUS hub/controller and an A-BUS amplified keypad via CAT-5 cable. The ALC3 automatically selects between an independent local source (e.g., portable CD player) and the source of an A-BUS system. It can be used with both single- and multisource A-BUS hubs/controllers.