Right now, I have 2 12"s that came in a '31.25” L x 20” W x 15.5” H' sealed enclosure. I want to get the loudest out of it, as I do not mind the sound quality. How much of a difference in loudness would a good ported box be compared to my tiny sealed box. Also, one last thing. If you could get 150rms watts more, or a ported box, what would make it beat harder? Thanks!