Yes @jjss49 , I commented on your system page and you never responded :-)
I have treated all the four corners of my room with bass traps. How far from the walls, were the D48Rs when they were in your room? I am surprised that they overloaded your room, because your room is bigger than mine and I do not have any issues with them. In fact I love them and am mesmerized by their clarity, scale and depth. These speakers disappear in my room. If you had issues with the D48Rs, I suspect (unfortunately) that you would have the same issues with the D9. Hope that you can work out with placement with the D9 if you get them. Good luck.