THE THX-6000-LCR IS A THX® ULTRA2 CERTIFIED LOUDSPEAKER. It was designed primarily for front left-, center-, and right-channel reproduction in large, ultimate-performance home theaters. It can also be used for surround channels, however, and is equally suitable for combination home-theater/music systems demanding superb sound and high output capability. Its enclosure is front-ported to facilitate installation in custom cabinetry and has back - panel 1/4” - 20 threaded inserts compatible with the Klipsch SB-9 mounting bracket or any high quality wall/ceiling speaker mount rated for 40lbs or higher load.