DBX ZC-3, Source selectorA selector switch on the ZC-3 allows the user to switch over the presets of the DR260.@+@+The ZonePro Series can program the source selection or scene selection and the connection is made via a CAT5 cable with RJ-45 connector.@+@+, For DBX ZonePro 640/641/1260/1261 and DriveRack 260, Suitable for standard wall mounting box