Onq Blue Line series 6.5" in-ceiling speakers (SOLD AS A PAIR) - Blue line Series 6.5" in-ceiling speakers are designed to be as efficent as possible and are more optimized for whole house music distribution. They feature mica fiber woofer, PEI mylar tweeters, and foam gaskets to minimize vibration and provide and air tight seal. Installation is also made easy by the use of self-centering screw heads and compatible with the onq-preconstructed speaker brackets, RMS power is 75W and peak power hadling is 100W. Frequencey response is 60Hz to 20KHz.