You should be able to use the jewel cubes, but not the accustimass module unless you can dig in it and reverse engineer that sucker. You would also need to be able to cut the RCA looking ends from the jewel cubes, figure out what is + and - to hook up to a AVR. Then you would need a sub too. http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-631
I personally wouldn't go with anything bigger because the jewel cubes would need to be be crossed at least at 120hz if not 150hz and larger subs sound boomy with anything above 100hz usually.
I personally wouldn't go with anything bigger because the jewel cubes would need to be be crossed at least at 120hz if not 150hz and larger subs sound boomy with anything above 100hz usually.