Klipsch DS-180CSM 8'' Dual Tweeter In Ceiling Speaker, EachSTEREO SOUND FROM A SINGLE SPEAKER Using the same acoustic voicing and design principles of our more premium architectural and box speaker lines, the all new Klipsch Designer series provides true Klipsch power and performance. With a dual voice coil 8 Polypropylene woofer and two . 75 Silk Dome tweeters, the DS 180CSM brings dynamic, powerful, detailed sound to your distributed audio system for true stereo sound in spaces where two speakers arent