The combination of comfort and performance that is a hallmark of the entire custom installation range is no better demonstrated than the CCM663SR ceiling speaker. It combines a woven 150mm bass / midrange driver with aramid fiber cone dual voice coil with a staggered array of two 25mm soft dome tweeters. Thanks to its highly accurate and natural sound, the aramid fiber has the most advanced high-performance hi-fi speakers and offers the CCM663SR the same characteristics. The dual voice coils and tweeters combine the stereo signal to allow the use of only one ceiling speaker in an installation zone without the loss of an audio channel. The CCM663SR also features a two-position stereo / surround switch, allowing the speaker to be used as a surround channel instantly.