Spud, I haven't read the AVS thread, but I can tell you that people frequently underestimate the room itself in seeking good bass.

I have a square room and get get 20dB swings by moving the meter a foot and a half because I have nasty nulls (places where the bass waves cancel each other out).

So relax, You don't need a new sub. Only a new house!!

Well, start by trying the sub crawl first.... \:\)

::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::