Yes Velodyne needs to come to terms with what needs to happen for them to stay afloat, lower cost per performance. I agree that they make a nice sub. I know this poll is NOT a "what is the best bang per buck?" thread. If that were the case then i would have hands down voted HSU Research!! But since this is a "Best" sub poll, i voted SVS.
I LOVE my HSU subs. In fact im planning on adding a couple more to the bunch. I disagree that the VTF-15H needs a bigger amp. I have read that both the amp & the driver reach their end at about the same point. IF!...that is the case, then a larger amp would make no improvements. From Dr.Hsu's history i dont think he overlooked anything, specially something that big. Still, at half the cost of the PB-13Ultra & real world performance of approx 80% of it, the 15H is a steal IMO!!
Bottom line, if i had $2000 to spend, i would have bought the PB13U. SVS make an incredible product PERIOD!! There is no denying that. Just take a look at their drivers, enclosures & measurements.
I do have to say that i dont feel SVS is the winner by leaps & bounds, no. In fact, i think its a very close race for all listed (except maybe 2 of them). If you were to take the average room these are all in, calibrate the levels & play material at what most people deam "high", i really feel that most would give you an A+ performance. But being the critics we are, it takes more than that. Second place would go to probably 4 of the competitors but i feel SVS takes the cake...butt...by a hair!