Originally Posted by
shadyJ 
If I were to choose what subs I would have at those price points, I think I would go with something like:
$100 -Dayton 1200
$200 -BIC F12
$300 -BIC Acoustech Pl-200 (if there is no Klipsch RW-12d deal going on)
$400 -Premier Acoustic PA-150
$500 -Premier Acoustic PA-150
$600 -Hsu VTF2
$700 -Power Sound Audio XS15
$800 -Hsu VTF3
$1,000 -Hsu VTF15h
$1,333 -Rythmik FV15HP
$1,666 -Rythmik FV15HP (gloss black)
$2,000 -JTR Captivator 1000
$2,500 -JTR Captivator 2400
$3,000 and above -Something from Funk Audio in a glossy Piano Black
The $500 point is a tough choice between the Hsu VTF1's variable tuning and Q control and the SVS PB1000's deeper extension and longer warranty, but the Premier Acoustics is still going to have way more output than either, so if I had to choose between them, I go for bigger output. I wouldn't expect the VTF1 or PB1000 to have very good output, but the PA-150 is starting to get to SPLs that I can live with.
Similarly tough choice at $800 between the VTF3 and PSA XV15, where the XV15 has a better warranty and slightly more output, but I had to side with Hsu there because the VTF3 is a proven reliable sub with lots of output, great SQ, nicer appearance, and is also fun to tweak. One sub I am curious about at this price point is the Klipsch SW-115, and a bonus is its street price is purportedly much less than its MSRP. I would want to see measurements on it and also get a better idea of its street price before I would consider it a best value sub though.
I had to go with the Rythmik at 1333 because of what a proven performer it is, but it could be that the PSA XV30 will give that sub a real run for its money at around that price point. I would want to see the measurements on the XV30 first before reconsidering there. I am sure either would be killer. But at 1600 a gloss black FV15HP would be too gorgeous to resist.
At two to three thousand, it becoming a real tossup between JTR, Funk Audio, and Seaton subs. I have to go with JTR very narrowly because I think they would have more output, but above $3k I think the Funk subs would have all the output you could want with the additional advantage of being beautiful, so the less price becomes a factor, the more Funk becomes a viable option.