You has said in another thread that you are re doing your room, and was wondering about the ceiling acoustics.
Auralex has really good acoustic products, They have tiles for the ceiling that will fit right into a drop ceiling. They will also do a free acustic evaluation. I am really happy with there stuff. Go to www.auralex.com and see what you can find. You will need to find a dealer near you. they can help you with that too.
good luck, Love your system !!
Mark