Hiya Randy. Yeah, square feet isn't a problem, but the cubic foot area is quite large given the open floor plan and ceiling height. I get the sense that the 60's would be fine, but the the price difference between the 60's and the 80's isn't all that much. But as you know, I'm concerned about the 4ohm spec on the 80's.
How do you like the 60's with music only? I listen to some classical, some jazz, some pop/rock. My old Mirage M760's are terrific, from top to bottom, with any of them. On movies they rock, especially with my Mirage S12 sub (got it at a great closeout price). The reason I'm looking to replace them is, even though they still play fine, they are old. And while they look pretty good, they're still "black boxes", and the finishes that Axiom offers really look nice (based on the colors my wife picked, I'm leaning towards gloss white with white grills).
Thanks again.
Jack