I have a 2nd system in a room the same size as yours. Firstly, suggest you avoid anything with a rear port, unless you can buy or try w/rite of return. This will eliminate a lot of choices. I am currently using the Spendor S3/5. I have them on stands a few inches away from the rear wall and still get a half-way decent soundstage. Whether you like them is a matter of taste (may not be best for Pink Floyd) and how you drive them, but my opinion is there are few speakers available at any price, that have their midrange.