Magnepan, Ohm, Spatial or ??

Source material is FLAC through PC (Roon or A+ - still deciding) or streaming from Google Play Music (bad, I know). :-) 

Then to a MyDac (soon to be Topping D70) then to a Jolida 1501RC amp.   

You'll have to allow for a lot of sound to be absorbed by the big black thing on the floor.    :)

(sorry - someone had to say it).

I have Ohm 5000s in a room only 11.5 ft wide. They work ok, but not a lot of stage depth. The 'room' opens on 3 sides which makes the closed side bass heavy. I use a bass trap plus drc to even it out. 

I had a set of Maggie 1.6qrs that I really enjoyed, but they do take up a lot of room and have to be out from the walls. This really complicates their use in a smaller or multi-purpose room. When I moved a number of years ago, I had to sell those. After trying several other speakers, I settled on a set of Ohm 1000s that I really, really enjoy. The current room is roughly 13' X 15' with some odd openings. The Ohms work perfectly for me.

@soundchasr  The three speaker examples you listed have very different presentations of sound. I'm a big fan of omnidirectional speakers and horns (which you did not mention).

Besides the Ohms, which are great speakers, I would recommend Shahinian Obelisks (my personal choice) and Larsen. Obs are in your price range used and the factory support is great.

In the horn camp, there are Klipsch Heritage (Heresys would work great in your room) and other vendors. I just purchased a pair of JBL L200T3s for one of my daughters. Baby butt cheeks! They sound great and work in her room which is similar to yours. Powered by a tube amp - she's happy.