This is a great subwoofer, I've owned it for a year now so its time to write a review. I wanted a efficient sub that could pound with great sound quality and this is it. I have it in a half top jeep so the sub is partly exposed to the elements, no problem there as it is a marine certified sub. I put it in the recommended sealed enclosure, which is not too big of a box at all for a 15 inch sub, which is a good thing for space. During the break in period I hardly had to put 200 rms watts to this thing and it was loud. Now that its broken in, it sounds even better and takes some more power and gets louder. Very power sensitive, hardly have to turn up the sub knob on my 400 rms watt amp at all. The sub sounds wonderful, it hits tight like a good 12 but with depth of a 15. works out beautifully for my setup. Blends well with my 6.5 inch speakers. For anybody wanting to really pound, you could hook up 2 of these and hardly need a 800rms watt amp. The sound quality is awesome, I've owned a kenwood sub, a couple of p2 rockfords, a kicker sub, but this polk is way better and my favorite, I love it. For the price you're definately getting your moneys worth for sure. Great sound quality and capable of serious output for only 425 watts. The build quality is great and the woofer is tuff. Also my jeep is not sealed so bass escapes the cab, but it is still plenty loud for me. If put in a trunk you'll hear and feel it well. Sound quality is just very nice, doesnt sound like a cheapy overly boomy sub, just has a great sound is all i can say. Sounds great with any music. Switched to some classical and the sub sounded rich and lovely, switch to some Ice Cube and it hits with authority. too long of a review already, if you're on the fence, just buy the darn thing.
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