Room Acoustics

Another vote for GIK.  I'm a customer.  Call and they will connect you with a consultant.  You can discuss the room's problems and your budget.  Once you are working with an individual, email a schematic of your listening space to serve as a basis for final recommendations.

Another + for GIK products. 6.5' ceiling? Ouch. My ceiling is 9' and with the room now well treated; I do detect the bounce from the ceiling. Not terribly annoying, but there. I Do plan to treat it with some diffusers from Vicoustic obtained through Music Direct.

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Yeah, I’m a bit salty about the 6.5’ ceiling, definitely not ideal. But I’m determined to make what I got work! Thanks for GIK references, they look great. 

I'm guilty of not reading your initial post carefully, zedak, and missed the low ceiling.  I have a 7 foot ceiling.  You can of course discuss treatment options for it with GIK or whoever.  During construction, we had Roxul installed between floor joists before the ceiling was finished.  Originally, this was done to provide some sound protection for the room above (great room w/TV and wife).  Surprisingly, I think the Roxul might have contributed beneficially to acoustics in the listening space too.  Whether due to Roxul or for other reasons, I'm not encountering any noticeable "ceiling bounce" though I'll add my floor standers while elevated are not especially tall and the room is otherwise well damped.  

http://www.roxul.com/products/walls/

Good luck with the project.  Hope you end up with a very enjoyable listening room.

Those ceilings being so low could definitely use some absorption . If your on a budget and you cannot afford the GIK which i believe to be fairly priced (No audiophile price inflation) you could build your own if you are diy type. First contact GIK though .