Maybe it's about time to put together some π subs to go with 'em. Do you want the plans? You can use a JBL 2241 or 2245, or an Eminence Omega 18 or Kilomax 18. I seem to recall you have hardwood floors, and that might hurt you a little bit, but you'll definitely be generating some bass with these subs. If you've still got that Adcom amp, it will do nicely with them.

Wayne