Well, I've owned an SVS...albeit it was only a pb10 but my custom sub built by Funkywaves is head and shoulders above it or the pb12 for that matter. It was designed using the AE av12x because I was looking for a ported sub with on board amp for easy plug and play...but for his higher end subs he only uses the best materials available (ie: LMS-drivers) & baltic birch ply for his enclosures because its ligher but stronger than MDF and in the long run it cost less to ship. Let's not forget being Canadian....Outlaw, Hsu and Epik just to name a few aren't that easy an option for us.

Regards, Bill....