Ok we got rid of the crappy slot ported box because it made the type r sound like ****. Ok please help me so my g/f has a good setup. We ordered a hifonics bx1205d which is 1200 watts at 1 ohm. Could people that have alpines give me there box plans there using and tell me if you have it ported or sealed. How you like it. How hard does it hit? Whats the sq like on your setup. We are building this in like two days so I need plans quick. Please help. The dimensions we have to work with is depth 30 width 36 and H 16. Please help us with box plans.