The JBL CSS8008 8" Multi-Tap Ceiling Speaker that provides full, clear audio in an unobtrusive design. The speaker has a 120° conical coverage pattern to provide excellent clarity and intelligibility. It also has a 5W multi-tap transformer that supports 25, 70, and 100V distributed lines for connecting to virtually any pro sound system. Product Specifications: Drivers: 200 mm (8 in) Full-Range Sensitivity: 96 dB (2k - 6k Hz) Coverage Angle: 120° conical Driver Continuous Power Handling: 15 Watts Transformer Taps: 5W, 2.5W, 1.3W Transformer Taps: 5W, 2.5W, 1.3W, 0.7W Transformer Taps: 5W, 2.5W, 1.3W, 0.7W Transformer Insertion Loss: 1.5 dB Maximum Transformer Connection: Bare wire Motor Mass: 200 g (7 oz) In CSS-BB backcan: 295 mm (11.7in) Depth (behind grille): 71 mm (2.8 in) Grille Diameter: 327 mm (12.9 in) Net Weight (each): 1.27 kg (2.8 lb) Shipping Weight (ea): 1.94 kg (4.3 lb) Included Accessories: 4 pcs M4 x 40 mm sheet metal screws for attaching speaker/driver/transformer assembly to corresponding backcanShipping Weight: 4 lbs.Shipping Dimensions: 16 x 14 x 4"