SYSTEM 12/25RS is a complete, UL Listed, shallow depth, lightweight, 2′ x 2′ lay-in ceiling tile replacement loudspeaker system consisting of an 8″ O.D., dual cone loudspeaker with a 5 oz. magnet and a 4W, 25V rotary select transformer. The molded fiber enclosure is 1,283 CID. The SYSTEM 12/25RS has a powder-coated steel baffle with standard perforation and four (4) seismic tie-off points. The cable clamp is included. No assembly is required.