The home theater is 15x26 with a 7.5' ceiling and the walls and ceilings are iso-damped (ASC sound proofing product). Sophia 2's worked OK in there but the Sasha did not. Not only was the bass a big issue but so were the highs - they would drive you out of the room on a lot of material. So I think the overall wider and taller family room made the most difference.
As for Antelope vs Berkely, the biggest differences were in driving the amps directly where the Berkeley sounded very good (and the Antelope very dry and sterile). I didn't do that much a/b when going through a preamp; my hunch is that they were a lot closer than when going direct.