I am in the process of upgrading my speakers. Currently, I have a Polk RM7600 setup. I will upgrade the LRC speakers only. Oh man, this has been a daunting process, especially since I can't audition many of the speakers I want to try. At first, I want really small speakers like the Orb and KEF little speakers, but I realize I would give up too much in sound quality with really tiny speakers. Anyway, I think I have decided on the Dana 630 and the Usher S-520. The Dana don't have nearly as much exposure and reviews as the Usher. Nonetheless, they are well regarded too. I have an opportunity to buy the Dana for less than the Usher. Anybody heard them both? What are your recommendations? Thanks.