A complete loudspeaker/transformer/baffle solution designed for ceiling installations in clean room environments. Each installer package includes two (2) 8″ O.D., moisture resistant loudspeakers and a 5W, 25/70V transformer mounted on a round, steel baffle. Also included are two (2) rust-resistant steel, load bearing supports and two (2) round, steel backboxes. Rubber gaskets are included between the baffle mount screws and the baffle, and between the baffle and the support bridge. The baffle and enclosure have a white, powder coat finish with high durability that is resistant to scratches and typical household cleaning liquids