I've had this sub for just a few days now. I got it here on Sonic for $125 with free shipping. Fantastic deal. Shipped quick as well. I have an Autotek MM1600 powering it in with 800 watts rms. It's in a 1.86 cubic foot ported box. This thing is definitely a beast for the money. I previously had a 12" Kicker L7, which was louder, but also rated with more power, in a bigger box and also cost more. Very satisfied with this sub.