The CI-IWSUR 6.1 is an in-wall dedicated side and rear channel speakers for high-end 5.1 and 7.1 theater applications. A proprietary cast wool/carbon Quiet Cone™ 6” with (3) 1” neodym silk dome tweeters, provides wide coverage and exceptional rear/side field characteristics. By grouping (3) tweeters in a controlled cluster, the radiated power is uniform across the vertical and horizontal axis, producing an extremely large sound field. Standard 45 degree dispersion.