Been reading a several days and spent several weeks trying to decide on speakers for my house that is under construction. I have always been a Boston Acoustics man:) , but have spent much time prowling here and went to Tweeters compairing to Polk's. Must say I am now sold on Polk:D . Listening today comparing the RTi6 to the LSi7 was really sold on the LSi7. But now researching them I was wondering if they would fill the room they will be in. Hoping ya'll (yep, I'm from Bama!) may help. The room is about 18'X23' and I was curious if the 7's will work or should I go to the 9's. I love music and thats what sold me on these. My wife of coarse is primarily focused on HT sound. I feel confident these will work great for both. I just want to be sure to get ENOUGH speaker for the room size. Please help, also any suggestions on a good place to buy them for a good price would be greatly appreciated.