AR HD510 Acoustic Research has developed an affordable six-piece 5.1 channel surround sound speaker system that fills the room with rich sound. Whoopty-doo -- there are countless systems from top manufacturers that do this... AR realized that when it comes to home decor, many prefer speakers to be heard and not seen, so they came up with a really clever way to HIDE all the speakers! Each of the optional subwoofer trunks and satellite speaker covers pictured in the Amazon carousel below was custom-designed to fit only the Acoustic Research Home Decor line of surround sound speakers. Once mated with the various covers, speakers virtually disappear and blend into almost any room decor. WHILE THEY LAST, you can read reviews, compare prices, and purchase your Acoustic Research HD510 surround sound speaker system online at Amazon.com or from Tiger Direct.