612-8. The handsome design of this deluxe corridor baffle/enclosure includes a cast mounting canopy surface enclosure and two flush grilles. Model 612-8 accommodates one standard 8" (203mm) loudspeaker and includes welded mounting studs for easy speaker installation plus a two-piece mounting canopy, and hardware for secure assembly to a standard 4" (102mm) octagon E.O. box. To prevent metallic resonance, the interior enclosure is coated with a metal deadener. Unit is manufactured of 20-gauge CRS and finished in textured white with a contrasting black mounting canopy. Model 612-8 enclosure utilizes a single loudspeaker to provide economical, bi-directional sound reproduction. Front and rear mounted grilles provide maximum opportunity for natural bi-directional sound distribution created by the front and back movement of a loudspeaker cone.