The SOLUTION 1 is a complete speaker / transformer / baffle solution for ceiling installations. Each installer package includes two (2) C10X/BU/WS - The 8C10PAX - 8? O.D. dual cone loudspeaker with a 10 oz. magnet and a TBLU - 5W-25/70V transformer mounted on a BR8WS - round, steel, stud mount baffle. Also included are two (2) SSB-3 - rust-resistant steel, load bearing supports and two (2) ERD8U - 275 CID, round, steel back boxes.