Not particularly familiar with the subs although think you should save a bit more to raise your budget. I have read relatively nice things about the Polk 505, also you might look for an Energy 10.3 at a good sale price, but they may already be gone. Klipsch RW12d on sale at 299 is a good deal. JBL might be alright but couldn't view specs. BIC has a cute brandnamething there with "eviction" but doubt it really would do that as well as a better sub. My .02
While a curtsey is what a girl does when bowing before royalty, I really wouldn't expect you to do that for me
I can't read your link cuz it wants me to sign up for something which I'm not interested in. Creating a thread is nice but doesn't really mean much without seeing the measurements. Strange looking sub but suum quique. The OP was looking for a different JBL, where does this one fit in their lineup/price compared to that one?