Yamaha's policy of always putting sound quality first, combined with decades of experience in producing fine speakers, ensures that the sound of these speakers is superior to that of many other in-ceiling speakers. the ns-ic800, ns-ic600 and ns-ics600 use a blue pp. (polypropylene) mica cone woofer...

3-1/2-Inch 2-Way Speaker, Red Poly Injection Cone