480W TOTAL POWER ; SELECT UP TO ANY OF 6 AUDIO SOURCES TO ;DISTRIBUTE TO UP TO 6 INDIVIDUAL ZONES ; ROUTED INFRARED CAPABILITY TO ALLOW MULTIPLE ;SOURCES OF THE SAME MODEL ; EACH ZONE HAS 40W OF POWER PER CHANNEL ; ON-BOARD DOORBELL INTERFACE (REQUIRES ACCESSORY) ; CASCADABLE TO A ;SECOND UNIT TO PROVIDE UP TO 12 ZONES OF AUDIO DISTRIBUTION ; REQUIRES EITHER THE MPTMCS1A SINGLE-GANG SOURCE CONTROLLER ;OR THE MPTMCS2A DOUBLE-GANG ;MULTI-FUNCTION SOURCE CONTROLLER FOR OPERATION