Thanks for the info,
The room is 12 X 13.5. I have heard the Proac's. I have not heard the Arcs but have heard only great things about them. It's hard to find somewhere to hear them in the States. I have the KEF XQ20's which have been compared against the B&W 805S's. I have had the owned the B&W 850 in the past. I can hear the PM1's. I do have a B&W PV1D sub with the KEF's. The PV1D can handle all the needed bass work. I read it's important to get the best speakers that you can afford when upgrading your system.