Need help tuning four btl 18s with aeros

[edthedrummer 0]

outter box dimensions are gonna be

58" deep x 46" wide x 24" high using two layers of 3/4 mdf all around (1.5" sides)

gives me 28.7 cu ft before displacement

assuming displacement is .26 per woofer lets call it 1 cu ft

my plan is to use six 6" aero's to start with

i am aiming to get at least 25 cubes net after port and sub displacement (assuming 1.5 cubes displacement for 6 6" aeros 15" long)

i NEED this box to be LOUDEST at 44hz, so i'm guessing tune to around 40hz (not sure)

its gonna be only for bass race and shows, i wont be driving this setup around town everyday, but i still will be playing music, mostly rap and not much in the 30-40hz range.

dimensions are pretty solid if need be i can make it taller if i need more cubes. i know 6 6" aeros is small on the port area for four 18s, i may add another 2 and get to 8 someday if need be

i need to know how long to make the aero's to get max output at 44hz

please advise...

[edthedrummer 0]

ok just tried plugging in some unofficial specs into winisd to try to get port length

41hz tuning seemed to have the most output at 44hz

i would have to make each aero 6.25 inches long

how far off is that? right on the money? i know i'm gonna have to do some testing and cutting to find out what works best but if i know say 6.25 is ideal i'll start with 9 inches then go 1/2 or 1 inch at a time cutting off little by little till i lose score

any thoughts?

[BKOLFO4 29]

Test and tune.

If you want it the loudest, get extra 6" tubes and install the ports at maximum length, test. Cut some length off, test. repeat until no length left. determine which length was loudest and use it.

Brian