Well, I was dismissing HSU for a couple of reasons:
1) Adding shipping and tax the HSU comes far more, almost $250 more in my case (specially because I've got an 10% discount coupon on SVS);
2) They are far bigger.
Answering your previous question Pogre, yes, I've got two (I don't think single sub is worth it, I always go with at least 2 subs). I am blown away by the SVS and I think the output and headroom (I did some compression measurements in my room) are far more then what I need, so, I am happy with them, so, raw output in my case is not a main concern. I am more concern on sound to be honest.
So, my question was (and still is), ignoring raw output, which one of those subs "sound" better? I am just tired of using old "rumble boxes" and I want to listen clear bass tones