this is just my opinion. the one thing to remember is with the 9a the base speakers are passive meaning they will not be driven by their own amps. this translates to what amp are you using and will it have enough bottom end. I also have a small listening space and the 11a's fit well as can be expected. the speakers sit 4' from the side walls and the rear of the speakers are about 1.5' from the rear wall. The speakers were set up by the personnel that have been setting up sound systems from the store I bought them from. they took about 3 hours to get them placed.
pvmike
pvmike