That space doesn't give you many options, I'll give you the normal reply "Get M80s" ;\) and suggest you look at ORB. No idea if they are any good. http://www.orbaudio.com/?gclid=COzNiaiUz54CFY915Qodd3rBrA they have a 30 day free trial.

You might be able to use three across the front and use a black speaker cloth to hide them (if you wish to).

Another thought would be to look at soundbars

Any photos you can post?

Getting to 2,000 posts; one year at a time vp160/qs8/qs4/SVS 2000/m60/Monolith 3x200 amp