Wilson Audio for a 1600 sq ft space

@yvl  Thanks for your response.

Go with what you like. Choose and Deliver on your own wants and requirements.

The speakers you are considering are very well designed and thoughtfully executed. Each will need unique attention in building it's supporting cast. This will be easier since, with major brands, there is manufacturer, dealer, and broad owner support  All will deliver great sound yet be different in their own ways (speaker, chain, and room dependant).

I'd shoot for Maxx 2 or 3 or Grand Slamms.

The smaller Wilsons have always left me a bit unimpressed.

You haven't said what you plan to drive these speakers with, or if so I missed it. A big box store receiver?

Some things to consider with the Wilson’s. Placement. A Grand Slamm, properly placed, is going to be away from walls a significant distance and will absolutely be the center piece of the room. Difficult to pull off a speaker of this size (even though your room size suggests otherwise) with other living space furnishings simply due to the reality of proper placement (not footprint). Then you have the component setup and placement as well, depending on what route you take. It can be quite a challenge when you consider speaker cable (all cable) runs etc. Take a look at some very high end listening rooms and you will get the idea. The Alexia can be "tucked" a bit more and their requirements are not quite as demanding. They become part of your living landscape, not the entirety. I run my Alexia’s (version 1) all the "wrong" ways. A little too close to walls, my room isn’t a perfect sound lab, my ceiling is vaulted and my space is very much the center of my household. They even play double duty for movies/television at times. Blasphemy. Anyway, they are stellar and can fit the bill in your scenario very nicely IMO. They look great, and sound simply excellent.

Yvl wrote: "I have a somewhat surrealist decor..."

If Salvadore Dali had been a speaker designer:

http://horns.pl/en/speaker-sets/universum-3-way/