I have been a long-time fan of Klipsch, and own a pair of KLF-10s, which I enjoy. There aren't any Klipsch dealers or showrooms, where I live, so I am asking if it would be a noticeable and worthwhile upgrade in sound quality if I were to replace the 10's with RF-5's. I note that the specifications are nearly the same, although the RF-5's uses more advanced materials. Please let me know your opinion.