I have not heard the 200's but considering that they are going to do surround duty I REALLY doubt that you are going to give up anything at all. The only thing that might come into play is if you are considering hi-rez multi channel use then the 170's or 340's become more important. Also, if this is the case, then I would think that dipoles would not be desirable. I believe Curtis has said that Dr. Hsu (Hsu subwoofer's) prefers the 200's over the 170's.

Randy