got pics of some thing like that?

 

The IXL18 would be a good choice.

 

DECWARE's Wicked-One Horn Subwoofer

 

You could solve all your problems with this:

definitive Technology -powered subwoofer PF15 - eBay (item 290398181568 end time Feb-11-10 18:45:36 PST)

I have one and it rattles the siding on the neighbour's houses! It's very musical, but in movies it's down right ridiculous. We were watching transformers and my mother-in-law had to leave the room during some of the fight scenes because it was 'rattling her bones too much'.