Do what I did, go with the 50's. Trust me on that one. I went down this same road except I had the 80's and decided that instead of looking somewhere else I would try something else in the Axiom line. I have zero complaints with the 50's other then they only run one set of terminals on the back. (No bi-wire, bi-amp etc)

They offer a lot of what the 80's do well and I'm guessing the 60's also but do it a little more laid back.