In-ceiling stereo speaker connects to whole-house audio distribution system. If you're installing the Elevate 2-Source 4-Zone Distributed Audio System to listen to audio from two different input sources from any four zones of your home, you'll want to make sure you have the proper speakers installed in each destination location. Ideal for smaller rooms, the 6.5-Inch Round Dual Voice Coil Speaker is a 50-watt in-ceiling speaker with a dual tweeter that simulates stereo sound. The 6.5-Inch Round Dual Voice Coil Speaker features a polypropylene woofer for superior bass response and a pair of fixed Mylar dome tweeters for simulated stereo sound and crisp, well-defined high frequencies.