Thin, but only in size, never in performance. Just 2 1/2-inches deep! Inside the sleek enclosure sit ten specially engineered Dynamic Balance drivers. Seven 2 3/4-inch composite mid-woofers, designed for high performance in a shallow-space enclosure, feature powerful neodymium magnets ensure smooth frequency response throughout a wider soundstage. Three 3/4-inch high performance silk polymer dome tweeters ensure realistic imaging and superior detail whether you watch TV, movies, or games. SDA technology allows this single-speaker driver array to deliver an awesomely spacious and realistic soundstage in any room setup.