The 8138 is an 8" ceiling speaker designed for use with a pre-install inceiling backcan, resulting in highfidelity performance at a costeffective price point. The 8138 is ideal for a wide variety of commercial sound applications from restaurant and retail to professional offices and reception areas. Features Stylish, contemporary appearance enhances any decor. Clear sound from an 8 inch dualcone full-range driver. Very high sensitivity of 97 dB for maximum sound levels using minimum amplifier power. 6W transformer for use on 70V/100V distributed speaker lines Installs to in-ceiling backboxes having 4 mounting points on an 11.25" (286 mm) diameter mounting circle. For use with MTC-81BB8 backcan and MTC-81TB8 tile bridge Specifications Drivers 200 mm (8 in) Full-Range, Dual-cone Frequency Range (-10dB) 95 Hz – 18 kHz Coverage Angle 90° conical Sensitivity 97 dB (2k - 8k Hz) Driver Power Capacity 40W (160W peak), 2 hrs25W (100W peak), 100 hrs Transformer Taps 6W, 3W, 1.5W, (0.75W at 70V only) Input Connectors Bare Wire Magnet 10 ounces (283 g) Safety Agency Transformer is UL registered per UL1876 Installation Full assembly consists of 8138 speaker plus MTC-81BB8 backbox andMTC-81TB8 tile bridge. Four screw holes at industry standard 286 mm (11.25 in) mounting circle. Dimensions (Diameter x Depth) 327 mm (12.9") diameter baffle x 84 mm (3.3") depth from back of baffle. Overall depth, 99 mm (3.9") Mounting points 4 points on 286 mm (11.25 in) diameter mounting circle Ceiling Cutout Size 300 mm (11.75") with tile bridge and backbox.228 mm (9.0") diameter as stand alone. Net Weight 1.4 kg (3.0 lb) Included Accessories Integral grille, 4 pcs M4 x 40 mm tapping screws Optional Accessories MTC-81BB8 backcan, MTC-81TB8 tile bridge Power Rating See transformer taps Maximum SPL (1m) 105 dB (top 70V/100V tap) Color White Backcan formed steel (accessory) Baffle/Rim Plastic Plenum Usage Yes, with accessory backcan
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