I've had good and bad luck in my room with *both* auditioned and unheard equipment. Lot's of us around here take chances without listening first: doesn't have to be a disaster if the piece is in demand enough, or the price you get is low enough, to make a tolerable net on resale possible. I've taken pretty good hits on stuff I heard several times and loved, when it just didn't work in my room.
I'd be inclined to suggest opening up the search a bit, and rethinking the relative allocation to speaker and amp, but I respect that one has to narrow the search eventually, and maybe you are at that point.
My hunch is that the Wilson's might be the riskier choice, because of the fairly widespread tendency for people (like me!) to experience them with glare and edge. You liked the Maxx, but I'm not sure that is enough basis for confidence that the Sophia won't be a fatiguing disappointment in your room. (Of course, you could be one of the people who swear by Wilson.) I've only heard the Eggies briefly, but they might have less potential downside.
If you stay the course, Odyssey makes excellent amps in your stated price range with the power you need. The owner, Klaus, is a helpful vendor who supports second owners. I had a Stratos Dual Mono and really enjoyed it. Won't be as good as the big Pass Ozzy commends, but this is very amply reflected in price.
Good luck!
John
