I'm sorry, but I don't have the patience to go thru 3500 threads and the search turned up nothing. So here is my question. Does setting the cabinets directly on the floor cause any kind of sonic cancelation or cross wave problems? I would think that the sound waves would bounce of the floor and cause problems. If you do lift them off the floor, how far? Do you put your 4 10's on the bottom or the 1 18? What about the port? I have a nice Carvin rig, but no matter how I tune it, it sounds muddy like there is a cross frequency killing it. I haven't tried lifting them yet but I have not noticed any stages that do.