For attenuation convenience of rack-mounted equipment in cabinets and consoles, the AT attenuators are available without mounting plate for rack panel installation. Attractive matte black polycarbonate dial scale overlay with adhesive backing replaces the mounting plate. Includes skirted black knob. Overlay size is 29 sq. (51mm). (Dial scale overlays to retrofit existing installations are available, see hardware section Model HX23.)Main FeaturesAttractive Matte Black Polycarbonate Dial Scale Overlay with Adhesive Backing Replaces the Mounting Plate. Includes Skirted Black Knob.Mount Up to Six Attenuators on Atlas ATPLATE-052 Rack PlateGeneral InformationName: AtlasIED AT100-RM Deluxe, Rack Mounted 100W Attenuator, 3dB Steps, AtlasIED, AtlasIEDCategory: AtlasIED, Pro AV, Commercial Audio, Pro Volume ControllersUPC Code: 612079179589Country of Origin: China. Country of origin is subject to change.