There are a some very notable smaller speakers listed by others above that will allow critical listening with or without a subwoofer/s. You mentioned a Wilson Benesch speaker in your introduction to our query but it's quite expensive.
I took the approach of a 2-way stand mounted speaker from W-B nearly 3 years ago. The Vertex
http://wilson-benesch.com/vertex-stand-mounted-loudspeaker/ in the geometry series.
http://wilson-benesch.com/geometry-series/All the technology (R&D) in a smaller package.
My electronics are up to the task of critical listening and they never cease to amaze me. Six months ago I grabbed my subwoofer (JL AudioFathom 112) back from my Son to have a listen. Let's just say it's staying in my listening room.
The soundstage is suprizingly enormous and completely realistic. Keep them on your possibility list!
Happy hunting