what to do for box design

ok so far i've come up with this. a box thats 35x25x20 is 10.13 cu.ft. tahts 4.5 cu. ft. per sub i wanna tune the box to 35hz witha slot port for each sub. each sub will have it's own chamber with a divider between them. with 4.5 cubes per sub each slot will have to be 126.25 sq.in. right?

 
ok i used winisdbeta and came up with this 42x27x17 is 11.16 cu. ft. but i couldn't get it to tell me the port size and length. i want 4.5 cubes per sub for two 15" l7s and there is still enough room for port and sub space left can somebody please help me out. i tried reading the JL audio tutoral but that didn't help.

 
No need to pay man.. thats why we are all on here.

idea43vt.png


Idea 4

Port: 2

3.5 X 16.5 X 16

(with wood : 4.25 X 14.5 X 16.5

displacement : 1.19cu Ft.

divider displacement

@ .75 X 21 X 27 = .25

Woofer displacement : 0.20

Required Space 9.0 ft cubed

Minimum box size: 10.64 ft cubed

21 X 27 X 33.75 or 10.83 ft cubed

Wood Cuts.

cuts6wt.png


And if you want to see pics of supllies you need and me building it:

http://www.caraudio.com/forum/showthread.php?t=159286

Its a double baffle, it took about 85 to build and I needed 2 sheets MDF with alot of little pieces of scrap.

 
Forgot, if you want you can send me a PM with your email and I will send you the sheet with all the info in here in one doc you can just print and bring to the store. You will also get my email if you want to "donate" to my paypal... ;-)

 
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