Conclusion: Unless your a total snob or trying to compete there is no reason why you should not buy this sub. The sound is great, I'm running a bridged channel from my Precision Power PPI P900.4 to 1 sub. In my rsx it sounds amazing. Its loud to the point you can feel it but wont rattle your car like a tin can. I'm sure If I had 2 it would be just that much more amazing. It sounds way better than some of the 100+ dollar subs out there.
Conclusion: Bought this sub to put in my bazooka tube since the bazooka sub just stopped working after about 2 days. This sub for the most part fit right into the bazooka tube, and since this sub is marine rated I actually bought ot for my boat. Boat is rockin now!
Conclusion: I just hooked these up yesterday to a 2500 watt Boss amp (I have it wired at 4 ohms which is only about 760 RMS) and boy, do these things sound pretty good! I put them in a sealed box divided, with .088 sg ft on each side (recommended air space). I doubt you'll win any competitions, but if you are looking for budget woofers that hit hard and sound good for the money, then these are the ones for you.
Conclusion: Sometimes when the fishing is slow the speakers need to blow. The Polk sub woofer gives you an edge when over eager boats getting too close. I am sure if you are listening you can hear me from the boat landing sending low frequency vibes down to my finned friends in the underworld.
Conclusion: Let's cut to the point, buy this sub. I have two of them hooked up to a Hifonics 1000.1d amp at 1 ohm in a Fierce Audio dual 12" vented box, and they are very impressive. They don't boom, they knock. Very clean, but very loud. Highly recommend them!
Conclusion: For 360w an under power spl amp at 340w still sounds loud sittin outside of a bank one day lisen to yung jezzy hyponties after 2 sec one of banker asked me to turn it down so I did. I have a JVC deck the volume was only at 30. But overall I would buy a few more for my next car db polkaudio sub.
Conclusion: I used to own a polk and that thing slammed hard. This is almost the exact same subwoofer but the rubber is santoprene and not butyl. They have the same frequencies and wattage. The db sounds amazing. I think it sounds better than the Dxi I used to own. A must buy.