SpeakerCraft CRS6 ZERO 6 1/2" INCEILING SPEAKER (EACH) 6 " Polypropylene Cone Woofer with Rubber Surround Pivoting 1" Liquid Cooled Silk Dome Tweeter with Neodymium Magnet Timbre-Matched to All Zero Series Speakers Impedance: 8 Ohms Power Recommendations: 5 - 100 Watts (Undistorted)