Ok so i know that If i go with a sealed box, i lose output, but i really like loud bass (excision, datsik, fast Drum n bass ) and i cant decide if ported or sealed. I have an 03 outback wagon and will be pushing 2 type r 12's at 1300 RMS. Im thinking that since i want quality as well, i will fire the subs up and ports back, tuned to 31 Hz? Any thoughts or opinions?