I've heard the 60s and the 80s, but not in an A/B comparison. I heard the 60s in my audition and was floored with their quality. They are what convinced me to go with Axiom in the first place, so I really believe that you'd be quite happy with them. In my case, the extra money to upgrade to Axiom's best (80s) was worth it as I didn't want to play the "what if" game in the future. They're both great speakers.

Epic 80-800: HG Cherry