Window panels can be made with glass that blocks UV, thus reducing damage to your belongings. If you don't want to replace the window glass, films can be applied that will also help.
If you're in northern CA, I have a pair of Maggie 3.5's if you want to give a listen. I have used them in various rooms and configurations, including in a room a little larger than the one you described.
Bob
If you're in northern CA, I have a pair of Maggie 3.5's if you want to give a listen. I have used them in various rooms and configurations, including in a room a little larger than the one you described.
Bob