lol very true. if you dont know the words, then that doesnt make any sense. personally, i have never seen a 15 inch sub in anything but a ported box. Normally a sealed box would be used for sound quality or when there is very limited space. Subs in a sealed box hit a lot faster and sound a lot more crisp. But you lose loudness. Ported often hit lower and much louder, but they also have a much looser sound to them. I think most people agree that sealed = rock, ported = rap/hip hop