So these VSW 10s are amazing for the price in sealed or ported enclosures. They have a rich full sound with a nice low end that you can feel. Definitely surpassed the JL w3v3 in sound and price. And I feel this sub is at par with the JL w6v3 for literally a fraction of the price. You can buy 5 of these and have money left over for a steak dinner for what wht one JL would cost. Don't get me wrong the JLs are a great sounding woofer but for $500 I will def buy this over JL and MANY other brands. The JLs fade out at low lows as these ride that low wave like a boss haha. Of course thats with the correct boxes, tuning, amps, etc. Your not guna get this sound if you throw um in a crappy pre fab with a 1000 watt boss amp a clip it to death (as some people do not even knowing it). If your not too familiar with car audio I would def recommend a professional. If you can't get a box made or cant afford it. try ground shaker they make decent boxes and aren't tuned high like a lot of other pre fabs. Also the reason I pick JL as the contender is because they are honestly close in spec but the price is day and night their power range is similar NVX has 2.5" coil JL doesnt say. both do great in small space, both FS is about the same NVX is 30 and JL is 31 n change. Also NVX response goes to 20hz as JL is 25hz. And just can't see spending 5bills on one sub when I can get TWO VSWs, a matching amp, wire kit and box. Def a 5 star sub.