A:AnswerHi there! The SWA-W700 Sound+ Subwoofer is only compatible with Sound+ Soundbar models (HW-MS550, HW-MS650, HW-MS750). The HW-T550 Soundbar includes a 6.5" wireless subwoofer. ^Gina
A:AnswerAny of Samsung's Dolby Atmos soundbars will give you a great home theater experience and can be found on BestBuy.com . https://www.bestbuy.com/site/searchpage.jsp?st=tv+wall+mounts&_dyncharset=UTF-8&_dynSessConf=&id=pcat17071&type=page&sc=Global&cp=1&nrp=&sp=&qp=&list=n&af=true&iht=y&usc=All+Categories&ks=960&keys=keys. ^Jason
A:AnswerThe best thing to do is check your subwoofer placement and verify the port on the subwoofer is about 6"-12" away from the wall for best bass response. ^Jason