DBX ZC-8 Remote Wall-Plate Mounting Volume and Source Controller for dbx ZonePro devicesThe ZC 8 provides both programmable source selection and volume control to the ZonePro products. The Zone Controllers offer extended utility to the DriveRackand ZonePRO families. The ten Zone Controllers use analog DC voltage to provide logic control ranging from zone source selection, volume and muting, to program or scene selection and fire safety muting. Wired with readily available and affordable CAT5 cable with universally accepted RJ 45