posted
I am doing my system over for the first time I want to do it on my own just to feel a little better about it but I got to the box and dont know a few things about it.
1 If I build the box 15" high X 36" wide X 20" deep and make 2 seperate chambers what will the cubic feet be or how do I figure this out.
2 what size ports should I use and what should they be tuned to for 2 L7 12s I want to have square ports just like the look a little more.
I really need to know this stuff to get going on the install all help will be apprciated thanks JD
Posts: 20 | From: Gilbert Az USA | Registered: Dec 2001
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posted
i am not sure what the recommended box size is for those subs but to work out box size you just: 15 X 36 X 20 then minus the volume of the divider and then divide by 1728 to get it in cubic feet.
go to linearteam.org and download winisd. all u have to do then is put in the box volume and the frequency you want and it will work out your port length for you.
hope i helped.
later
-------------------- soon: eclipse 4321 phoenix gold line driver
posted
thanks for the help and yes it is a little help that I needed thanks again JD Posts: 20 | From: Gilbert Az USA | Registered: Dec 2001
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posted
Assuming 15" high X 36" wide X 20" deep external dimensions with the divider displacement counted in, you have a total of 4.9 cu ft of internal space. That's using 3/4" material. So 2.44 for each sub, minus sub and port displacement.
A ballpark tuning of 35 Hz. 20 sq in of port( 5" * 4" slot), you'll need a port 17 in long for each chamber.
Posts: 768 | From: Ottawa, On, Canada | Registered: May 2000
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