I have a Logitech Z5300E PC 5.1 280W RMS THX Speaker System and it is unbelievable but I was just wondering what each sites description of the patent dual chamber subwoofer meant. Does this mean that there are actually 2 sub speakers built into this one box because you can't see inside the box to tell but just curious to know since this system puts out alot of power. Heres a link to the system if anyone needs to see: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1068249&CatId=0