I've compared the stf3 & stf2 at elecrtronicforless. At the time they were pitted against the Svs pb10 and pb12 and I bought the pb10. I've since moved on to bigger and much better sub with my acoustic elegance custom build and it was a major improvement. Sorry, I've never heard or auditioned any sub from Axiom but I'd have to say yeah the ep500 should be smile

Last edited by billy p; 03/09/11 04:19 AM.