triangle box with areo port????

[loudaccent 10+ year member]

ok i have a triangle box its 4 cubic ft.,, the sub is gonna be a atomic apx an it has 8,000 watts now i wanna do 37 hz an 55 hz.. an im considering 3 4" areo ports. now the part im not sure of is should i build 3 short 4" areo an then to do 37 hz get extensionsan add on to them...?? not sure.. i would perfer to have 37 hz built in,, an extend them for 55 becuse i would have to fold down the seats.. please help or give input.. her is a pic

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[loudaccent 10+ year member]

that second pic the box was upside down srry just so you can see the depth

 

[tcguy85 10+ year member]

with a triangle box you need to use triangular ports.

 

[UndercoverPunk 5,000+ posts]

8000 watts eh? You should relly let the SPL guys know about this secret weapon...