my tuning? I think i messed up

[TooLowTooGo 10+ year member]

lol. im not the best when it comes to tuning. lol.

so help me out and let me know what this would be tuned to... I came up with aroun 40hz, but I feel im WAAAAY off... I want it to be aroun 36hz, so help me out and let me know what needs to be done to get there

outside demensions 30 x 15.5 x 24.5

inside displacement before subs or ports = 5.3cubes

subs being used are (2) 12" MTX 9500's

(4) 4" aeroports that are 18" long. (from front to back)

Click to read more...

 

[TooLowTooGo 10+ year member]

bump

 

[tRiGgEr 5,000+ posts]

Not counting driver displacement tuned to 36.8hz

 

[TooLowTooGo 10+ year member]

driver displacement is about .5-.6

so then i was right, aroun 40hz... but it doesnt seem that way when the poirts take up half the box, lol...

just didnt look right to me looking inside the box and seeing nothing but port.

 

[tRiGgEr 5,000+ posts]

4.29ft^3 tuned to 38.8hz

Counting .52 port displacement and .5 driver displacement.