I've got two of these in a superbass probox and they rock. Kicker has no problem living up to their rep of more bass for your buck. You won't be able to find anything else this loud for this price. My only regret is getting the four ohm. The amp I had wasn't 2 ohm stable, but when I went to buy a new one, my options were very limited. With dual DVC 4 ohm, you can wire it at 4 or 1 ohms. My suggestion is to stick to the 4. At 1 ohm, your car can't push enough power for the amp to reach its full potential. Also, the 4 ohm has a much better sound quality. I started with 300 watts RMS split between these subs, which was still loud, upgraded to 500, which literally broke a chunk of my windshield off, and now I'm gonna upgrade again. These subs are hungry for power, and, in the right box, will blow your friends away.