IMO the Axioms fall way behind in performance and price compared to other brands. There was a user on AVS that had a PB12NSD and bought a Axiom EP500 for another room. The PB12 NSD went deeper, had more tactile feel, and played louder, it gave up alittle in the "musical" area but not much. Axioms have a "brickwall" type high pass filter on them so they don't gradually roll of it justs stops right at the filter. Which hurts any room gain you could get.
If you want a pair of "mega" subs, the SVS Ultra, SubM, JTR Capitvator, eDs A7-450, A7s-650 would be the way to go.
I'm an Axiom owner, but just look at all the forums for audio and hometheater and very rarely to you see anyone recommending or praising Axiom subwoofers. They just plain suck for the price.
