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

I have a pair of Charney Audio Companion Voxativ AF 2.6  in my 11x15x8 room. They will play very well in the 11x13 room your considering. Charney offers 3 different looks for the Companion and many different drivers to suit your taste, budget, and gear. Don't let the small size fool you these are serious speakers that deliver it all especially deep clean multi note bass. Do a search there are a few very positive comments from owners and show attendees around the web.

http://charneyaudio.com/

Charney Audio just released a newly designed Maestro horn utilizing the 8" Voxativ AC 1.6 $4400.00. Designed on the Tractrix Theory specifically for smallish rooms. Same sound stage and imaging Charney is noted for with a tad less bass. Make an appointment and let your ears decide.

http://charneyaudio.com/the-maestro.html