Soundbars have quickly become a popular solution due in large part to their flat-panel television friendliness. Definitive Technology’s XTR-SSA3 is a slim, three-channel, all-in-one soundbar that incorporates the Maryland-based company’s Spatial Array technology that widens the soundstage. Def Tech says the speaker measures less than two-inches deep and it can be used with a subwoofer and/or rear-surround speakers to create a compact surround-sound experience that complements the ergonomics of a flat-panel speaker. The XTR-SSA3 is 43 inches wide and it employs six 3.5-inch aluminum dome drivers and three 1-inch aluminum dome tweeters.