Small dedicated listening rooms

I also have a small dedicated listening room. It's approximately 9'x13'.  I have some modest acoustic treatments. I run 3 HSU subs. My speakers are about 30" or so from the back wall,and the center of the speakers about 15" from side wall. (Speakers are on the 9' wall)  I alternate between Nola Boxer 2's,and Hornshoppe Great Horned Heils. To my ears,and some friends ears,imaging is very,very good. I don't crank the subs,and bass is full and satisfying.  I believe a small room can deliver great sound with a little patience. 

i have a system in an unusual room 12’ x 10’ but with 14’ plus ceiling....( I know...I know )
i have managed excellent sound with many different speakers: Apogee Stage, Dynaco A-25, Sonus Faber Concertino, Vandersteen 1ci
room gain will need be managed in your situation..you might have to try an analog filter in the 60-80 HZ range, with your ARC seperates this is easy, Vandersteen M5 HP will work with very minimal impact to SQ....it is just science..

Dukes points about HOW your brain hears are very relevant, even w smaller speakers designed for NF, you should at least be trying this..

The Vandersteen Treo is designed to operate near a rear wall, combine those with toe in, first replaction control and you might achieve bliss.....

good luck 

oh and while I was rebuilding them and for a month or so Cornwall also did well in my room......

For those with “small rooms”, take some masking tape and block off 8.5’ x 10’. My room is about 50% larger, and is still small and challenging. Again, I’d focus on creating a very soothing environment around a killer headphone set-up.