ok so you want a pair of 12's correct? and budget is 200 bucks per woofer, going ported on what power? because that also makes a big difference!.

now for 400 bucks for a pair of 12's I can think of at least 4 other companies that will be cleaner, smoother more transient, and still get lower, and louder, and be similar power and price!

the DD 1500 is a very nice woofer, will play smoother and more accurate imho for ALOT longer than the jl.

for similar power, you could run the Incriminator audio 187 series 12.

if you want more power handling. maybe something like this

http://www.soundsolutionsaudio.com/s...on-Series.html

or even this

http://www.soundsolutionsaudio.com/s...SA%252d12.html

there are the 4 mentioned above subs that will outperform the jl's in every way, other than Pricing. because we all know JL is overpriced