I'm looking to upgrade , Axiom EP500 v2 or SvS Pb Ultra 13?????

[Bastia]

I've seen the PB13-Ultra compare favorably to the EP600. (If you search on the Axiom message board, you may be able to find some comparisons--I know there was at least one.) I'd go for the SVS for the value. I went with Axiom for my EP800s (had an EP600 prior), but there are better deals out there. SVS seems to be high bang-for-buck, along with HSU Research and Elemental Designs. Anyway, I think you'll be more than happy with the PB13-Ultra. I'd say the only reasons to go with Axiom for subs would be for aesthetics or if you're going all-out and getting the EP800.