High end bookshelf speakers for Small room

OP,with your room size it would be wise for you to check with TAD before laying out $15K on a speaker very likely to overload the room...
After you do find they simply won’t work in that small an environment, look at the sealed cabinet design of the YG Acoustics Tor or Cairn...
"The TAD Micro Evolution One (ME1) speakers are best suited for medium to smaller sized spaces. They can fit in rooms that are roughly 11’ x 17’ to 17.5’ x 26’. However, they are not recommended for filling very large spaces.

Here are some tips for setting up TAD ME1 speakers:

• Position: Place the speakers about 4’ from the wall behind them to avoid adverse reflections.
• Separation: Space the speakers about 8’ apart.
• Distance from listening position: Position the speakers about 9’ from the listening seat.
• Toeing in: Toe the speakers in toward you."

Vandersteen Treo CT. They don't take up any more floor space than a bookshelf/monitor speaker on a stand, and can be placed very close to the front wall.

Or Audio Note. 

AN/K-spe's would be nice.

A pair of original Snell Type K's would be a much better value than the exorbitantly priced Audio Note K's. I have the originals.

I haven’t read all the responses in this thread but I have recently dealt with the same situation as the OP -- finding the perfect high end speakers for a small room.

I’ve set up my system in a small unused bedroom and the Audience Clairaudient 1+1 series V have proven to be ideal in that space. They're about the size of your head. 

There are many rave reviews online about these speakers.

They run about 4k for the pair.