I have 2 12" RF 3112 HX2, first question are these the best subs RF has to offer. I heard they came out with some new ones. Second, before I didnt know **** I went to hifi buys and they told me to get a sealed box and not ported. Third, I have one memphis 1000d amp, I am getting another this week so I will have 2, 1 going to each sub. Will a ported box really make that much more of a difference. I have a 99 explorer. I think it will still be ****ing loud. i dont want to pay 250 to make a new custom one, but if it is that much better I will. So whats your guys opinion on the box and the best RF sub. Thanks boys.