Easy to install and stunning to behold (both visually and acoustically), KEF's all-new range of rectangular, in-wall speakers are designed and engineered for serious music and home theater systems. The Ci3160QL in-wall speaker features a 165mm (6.5”) Uni-Q array with a pair of 165mm (6.5"0 MF drivers for use as front-left and -right, center or side speakers. Housed in a rigid aluminum frame with a total mounting depth of 3.9" the Ci3160QL can be mounted in any standard wall cavity. Ci3160RL-THX is an in-wall speaker certified to THX ULTRA2 standard. A deep understanding of the filmmaking process and surround sound is at the very heart of every THX certified 2.1, 5.1 and 7.1 speaker system. Engineered with design characteristics of professional studio speakers, THX recreates the tonal balance of the filmmaker’s final mix in your living room. The results? Action sequences are impactful, and dialogue-driven moments are natural and engaging. THX certified in-wall speakers deliver the appropriate frequency response and high output and imaging quality of a traditional box speaker. This provides the best of both worlds—THX surround sound performance from components that blend harmoniously with any room decor.