I have a hardwood floor in a 2nd story room. (cant go under the floor with wire) I'd like to place my Sub nearer to my listening/seating/viewing area. There is a floor outlet there, but I'd rather not have the RCA cord running across my floor. I am thinking aobut buying a wireless adapter like one of these http://www.realelectronics.com/wireless.asp to get the signal from my amp to my powered sub. Dos anyone have any thoughts on this? Is it a good idea? bad idea? Is there a better way?