i took the tuning and the box size into account but not the port area...just wondering because i'm doing a sealed trunk build now and from what i've seen, people that do SPL shows and what not use aero ports and people that just seal it for the hell of it have a rectangular port. that goes for most people that go for TL numbers though if you look at the sundown audio vids on youtube the guys that test them use aero ports, thor has used an aeroport and a few others that go for number use them....but i guess i just answered the question i was going to ask lol