AtlasIED 8" Blind-Mount enclosure systems ( U.S. Patent # 4,673,149 ) provide an easy and cost-effective alternative for secure speaker installation in retrofit ceiling applications. All necessary hardware is provided including a unique support system with mounting ears that telescope out from inside the enclosure and adjust vertically to accommodate ceilings with a thickness of 1/2" (13mm) to 1 3/8" (35mm). Units feature CRS construction and include torsion-spring receptacles for quick mounting of torsion-spring grilles. (J-Nuts are included on the return of the enclosure to accommodate surface-mounting grilles.) To allow cable access, enclosure backplates are manufactured with three 1/2" (13mm) conduit knockouts. Enclosures are also equipped with sound damping material to minimize metallic resonance. AtlasIED BMT95-8 FEATURES Mounting Ears Adjust Vertically to Accommodate Varying Ceiling Thicknesses Quick Mounting of Torsion-Spring and Surface-Mounting Loudspeaker Grilles Support System Enables Enclosure Installation in Retrofit Ceiling Applications AtlasIED BMT95-8 SPECIFICATIONS DEPTH 4 1/2" (11.43 cm) DIAMETER 10 1/8" (25.72 cm) SHIPPING WEIGHT 3.33 lbs (1.51 kgs) MOUNTS BAFFLE (T)51-8, (T)60-8(W), (T)61-8W, (T)62-8, 63-8, 67-8(W), 68-8W, 170-8, G22-8, T610-8W, T710-8, T720-8A, M222(W),TM222W, P900, 60- List price: $45.99Price: $37.99 Quantity * SKU: BMT95-8Catalog: Surface, Box & Hanging SpeakersBrand: AtlasIEDDimensions: 12 in × 12 in × 10 inWeight: 4 lb