I went to a local Polk dealer yesterday to see what they had in the store for me to listen to. Unfortunately they didn't have anything that I wanted to hear set up at the time. I told them about my listening to some RTi8's paired with Fxi3's and a Csi3 center. They proceeded to tell me about the LSi7. He said that the sound from these was amazing and I would definately like them (that's to be determined). He's going to setup a combo that I was talking about for me to demo on Saturday with the LSi7 fronts, the LsiC center channel and Fxi3 surrounds. Other than the obvious difference in size when comparing the Rti8 to the Lsi7, what else am I going to notice that I might like or dislike. I know that Lsi series houses the high end polk tweeter that I've read good things about. Am I going to hear the same kind of full sound that I'm looking for out of the Rti8's with the Lsi7's?