he SPK−C800−PRO is an innovative, patent pending Kramer Complete K−overage ESD™ ceiling speaker. It is the only speaker in the industry with built−in stereo separation. Constructed with a central driver and four pivoting tweeters in a sealed enclosure, the Kramer Complete K−overage ESD™ provides unmatched sound response for both voice and music in a suspended ceiling device for the professional market.- Wide Sound Dispersion - 180° range.- Smooth Frequency Response.- Power Rating - 40W RMS.- Depth - Shallow 4" (approx. 100mm).- Woofer - 8" 8Ω polypropylene cone.- Complete K-overage ESD™ - Patent pending design with 4 pivoting tweeters direct the sound, based on the room environment, for equal sound dispersion (ESD).- Tweeters - 4 pivoting 3/4" 6Ω with silk domes.- Accessories - Installation bracket (for half−tile only).- RoHS Compliant.- Excellent Bass Response - Optimized for music and high−quality voice reproduction.