Conclusion: The sound good. Can't really complain for what they cost. I bought 2 for a enclosed box. After like a week the center JBL plastic cap popped off... No big deal really. Didn't change the sound so I just gorilla super glued it back on and it hasn't come off since. In all reality, you get what you pay for. That being said though I'm still happy with the performance.
classicrockguy from greenville, sc, Sonic Electronix
2 January 2015
Conclusion: this sub is as good as any in its price range and even alot more. classic JBL quality, both in build and sound. hard to beat at this price. sonicelectronix offered great price, easy ordering and very fast standard shipping.
Conclusion: These subs were recommended to me by a SonicElectronix employee on the phone. I gave it some thought and decided to go with these, only because JBL products are used in my home studio so I assume the sound quality is very good. This is supposed to be an upgrade from the do-it-yourself Crunch subwoofer + box I got a couple years ago (and that was a pretty good set-up, actually.) These subs are pretty good for the price.
Conclusion: I bought a pair of these looking for just a nice clean setup. I hooked them up at 2 ohms to my old kicker zx1000 and they did okay. Keeping in mind they may be seeing about half power for the first 2 weeks,and after 50 hours freeair with maybe 100 rms to each sub. Were the subs broke in? Yes. I tuned and clamped this setup to push 800 rms. Now they say 450rms a piece. Really JBL? First the Infinity Kappas sound like crap now these.
Conclusion: When I received the subwoofer something seemed off about the quality. The holes where the basket meets the cone were misaligned.... Odd for a new subwoofer, but not too major of a problem. After being broken in after a couple weeks the dust cap just came off. Not a big problem either but seriously wtf jbl? Honestly it's a decent sub for the money, but I wish I just spent more and got a better sub.
Summary: The sub is doing great so far. i got this because my wife needed her trunk space in the car. so i went from two subs down to one, purchaced this and my wife is happy. and if she is happy then i am happy!