Conclusion: This subwoofer is amazing. I own one of these and can't complain, I've had it for over a year now and it still handles the daily abuse I give it. It can hit so hard that I've broke the seals on my box twice. Place it in the recommended 1.5 cubic foot sealed enclosure and you will have no need to complain. I install my own and "wow" my friends song after song with this sub.
Conclusion: I bought one of these subs and was going to get something cheap until I saved up until I was going to buy expense. I am no longer going to buy something to get more. The bass is great and hurts my ears now, so I don't need anything else. I know a lot of post would want to thousands of watts etc, but man this is just to great for the money. And shipping was so fast for free. Now I need to buy some stock smaller speakers.
Conclusion: I bought this subwoofer to run it by itself almost a year ago now. I have it running at 350rms 800peak in a ported box in the back of my hatchback.. It's still running great. This sub hits fantastic. Absolutely shakes the car. It's like having a back massager in my chair. If you're on a budget, this is the best boom for your buck.
Conclusion: I bought two of these from Sonic and put them in my Integra. They're in a cheap-o box made of 1/2 MDF and running off the Power Acoustik BAMF-2000/1D amp. OH MY GOD! These are OFF THE HOOK! I got the loudest sound system at my school. Awesome sound quality too! If you're on a budget and you're looking for some SLAP, get these with the amp I mentioned. YOU WON'T BE DISAPPOINTED!