The best speaker for a small room...at any price point.

There is probably no "direct" answer as a soundsystem has to be seen as a whole, including the acoustic characteristics of your room and your personal tastes!
I love the Dynaudio Contour 20 on my friend's Krell KSA-100s amp + KRC3 Preamp, Ayre QB9 DAC.  Il like my Ryan R610 coupled with my Rega Elex-R amp + Rega DAC-R.

ProAc D2http://www.theabsolutesound.com/articles/tested-proac-response-d-two-loudspeaker/

I used to have B&W 802D in 12x13 room. They sounded excellent at 7 feet from my chair with condition that most of wall space was covered with acoustic panels.
Most KEF speakers (starting with LS50) will work in small rooms too. QUAD ESL line is DESIGNED with small room in mind.

I also have KEF LS3/5, and I don't miss anything when playing acoustic music.
Kind regards.

I have a 10X10.5X8 room for my ATC SCM-19's. I listen near field, an ideal listening location for a small room with monitors. If you set your room up right and have the power the drive the ATCs you'll be very happy.


Rollin