Dual 15" Box Help with port sizing.

[GMC52789 10+ year member]

So ive designed a box for my two 15s im going with 3.2 cubic feet per woofer tuned at 35hz. so this is what a came up with 40w x 17h x 20 d wich equaled 6.39 cubic feet. i was thinking of having the woofers firing up and the port towards the back of the suv ( the same style as kicker06's 15" Q box he had for sale) ( is there a advantage or disadvantage to this vs a regualar slot port in the middle of the two woofers?.

the spec for the woofer is 25 sq inches of port area per woofer. 18.5" long. so i figured i need 50 sq inches at 18.5 long.

my question or conecern is what size do i make the port opening ( width and height) i figured i would make the height the internal dimension of the box. 15.5 inches since im using 3/4 wood. but i cant figure out the width. and a concern of mine is they reccomend 18.5 long should i run that straight to the back of the box only leaving 1.5 inches in the rear or should i make a L shape port.

Thanks for any and all help.

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[GMC52789 10+ year member]

or if someone wants to email me box designs i have paypal . let me know if you can help me out. thanks again

 

[BNolan12 10+ year member]

PM pro-rabbit. He would help you out and design something for you. He's helped me out alot and is really helpful with any questions i have

 

[GMC52789 10+ year member]

No luck there anyone wanna make me plans have paypal ready?!

 

[GMC52789 10+ year member]

No luck there anyone wanna make me plans have paypal ready?!

 

[THATpurpleKUSH 5,000+ posts]

email ram_designs or try mobile enclosures

 

[Moble Enclosurs 10+ year member]

Thank you for the support kushy. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif I can help you OP if you are interested. Pm me if you would like to talk about a design idea. The other two mentioned are very well designers as well, so I'm sure you will not go wrong with any one of us in case you are exploring your options.