Epik definitely had amp issues, just sourced too cheap an amp; my Empire's amp died early on but the replacement has been going for 9-10 years now....and if it fails I'll just hook up an external amp. Still got that Empire kicking around?
@axedaxed I've not heard much about amp issues for Hsu, maybe more with SVS, but think SVS probably is ahead in number of subs sold, too. Can't say it appears to be a problem for either of them and think it's more that the amp will either fail earlier or later and personally wouldn't bother with an extended warranty (on anything, altho if Hsu backs up the warranty themselves on same terms as the two year deal, they're probably better terms than the add-on extended warranties I've looked at terms for). If you buy with some credit cards you might get a year of extended warranty, too (my credit card does that).
How about moving it up a bit in size and going for the VTF-3 mk5?