I bought a pair of the old BP22 bookshelves for $49 a couple of years back for fun, and they get used, sometimes with some pretty exotic gear. I've been waiting for a drop in the SW to match and ordered one when Amazon alerted me it was reduced this weekend - at that price, I could not resist. I've never run a sub but at a combined price of $110 for this set up, I figured it had to be worth trying.