8" (200 mm) Full-Range In-Ceiling Loudspeaker for use with Pre-Install Backcans 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