Do forum members do this sort of thing ? Chatting to a mate he thinks you'd get a good response by sticking the driver in the wall (although the occupants of the dining room may not appreciate it). Alternatively I could put driver in the fireplace. Not sure what it would sound like outside!. What's the biggest drive unit out there? I expect the ICE people have the biggest? Then just buy the most powerful old amplifier I can find on eBay. I'm only thinking of .1 channel here. Any thoughts?