Got an opportunity to get the KEF R2C for $500 used or a Monolith THX 365C for $250 used. I keep hearing great things about both and they both measure decently. I have a sub, studio 580s LR, and a Q650C center right now. Is the R2C worth double the 365C? I don't listen very loud to music/movies. I care more about clarity, especially dialogue. Anyone own both and can give an opinion?