I have a pair of Shelby+Kroll monitors with matching subs that will give you exactly what want. The monitors were designed for studio use and home audio. They throw a huge sound stage with spooky real imaging. With the size of your room, the S+K’s sound are superior for off axis listening. Do a search and see my many posts about them and some pics of how good they look.
If your in the Greater NJ, PA,NY area I can demo them for you.
https://www.youtube.com/watch?v=_PhurA1Lu4s
Chris