We did a room set up at RMAF with a pair of Talon Hawks and a Thunderbird subwoofer. The key was the integration with the Rives sub-PARC. The room received a Positive Feedback Oasis award for great sound. I'm more than a little particular about sound quality and I am usually disappointed with sound at shows, even when I can treat the room, we are still so constrained. This was truly and amazing sound and the room was just a little larger than yours, 13 x 19 roughly.
Here's the report from RMAF.
Here's the report from RMAF.