I have not heard Axiom subs. I owned paired polk psw10s. Then "upgraded" to a velodyne eq-max 12 and finally ended up with paired svs sb12-nsd subs. (currently called sb-2000.) Enter the room lock era. I cant see any upgraditis happening anymore.
Even the paired polks were a noticable improvement in the bass dept over running my towers full range. If you get the 500s set up properly you should attain the "super speaker" experience Craig mentioned.
Dont sweat it Matt.
Room lock awaits you.
Whats that? You'll see.....
