I recently auditioned a pair of KEF LS 50 Meta's with a friend who just got bit by the audiophile bug. My jaw dropped!! There is nothing that competes under $5K with these. The room was 12x16, and I swear there was a sub connected! They are a better speaker than R3. We directly compared to the R5 and the LS 50s were better. R series is old technology; they have not incorporated the Meta drivers as of yet. As far a Paradigm, they are bright sounding speakers across the whole line. To my ears, "nails on a chalkboard." I just purchased a pair of Reference 1 Metas. I am anxiously awaiting an 8-10 week delivery!
Best of luck!