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.