The LBS8 is engineered to distribute the weight of an 8" speaker assembly to the ceiling support system in a suspended 2' x 2' or 2' x 4' tile ceiling system. A tile bridge is often required by local building codes for safety reasons, as well as to reduce the potential of having unsightly sags in tile ceilings due to undistributed speaker weight. The tile bridge can be used with or without a backbox, depending on local building codes and the speaker/grille combination used.