Yamaha Ceiling speaker system (NS-IC600)Experience superior sound quality with the Yamaha NS IC600 ceiling speaker system. It's designed for reliable performance in custom installations and is easy to install with a slim profile design, paintable grille and magnetic grilles. 8" 6 1 2" polypropylene mica cone woofers provide powerful mid low sound reproduction, while fluid cooled, 1" soft dom swivel tweeters deliver pure, precise highs. A sealed back cover and grain finished acoustic baffle