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Bggd_GMC
10-29-2011, 02:45 AM
im building a box for 2 SA-12, im aiming for SSA recommendations 1.75cf, 30hz...with displacement from the subwoofer im looking at around 1.77cf for each chamber..... what you guys think will it work??? first ported box build BTW, Thanks!!!

26528162

Bggd_GMC
10-29-2011, 02:48 AM
noticed the pic is a bit small lets see if this will work

--------> http://i82.photobucket.com/albums/j270/oak_03/SA-12BOXDESIGN.png

Louisiana_CRX
10-29-2011, 02:50 AM
its 1.75 plus port...so about 2.20 total not 1.75 per sub

Bggd_GMC
10-29-2011, 02:54 AM
its 1.75 plus port...so about 2.20 total not 1.75 per sub

i am not understanding you? gross im at 2.31cf

* after a **** break i think your saying the subs need 1.75 plus the port correct? if you notice on the right i have the measurements of the box that comes out to 2.31cf, and RE says 1.916(i guess they take the port displacement out) so 1.916 take away the subwoofer displacement im at 1.77cf..... sorry that i misread your post

NoLoud4U
10-29-2011, 03:02 AM
Dont use that calculator. Its not accurate.

Bggd_GMC
10-29-2011, 03:03 AM
Dont use that calculator. Its not accurate.

what should i use?

NoLoud4U
10-29-2011, 03:08 AM
WinISD

slvrado28z
10-29-2011, 03:09 AM
the12volt.com

Bggd_GMC
10-29-2011, 03:11 AM
WinISD

thank you sir!

slvrado28z
10-29-2011, 03:19 AM
i use the12volt.com but idk how accurate it is?

Bggd_GMC
10-29-2011, 03:50 AM
both websites are confusing as hell lol

mylows10
10-29-2011, 04:03 AM
The re. Box calc is off by 3-5 hertz higher so try tuning it lower and see how that works

Moble Enclosurs
10-29-2011, 04:44 AM
Dont use any of them. Use one of us. Thats what we are here for. For my designs being only $20 each, you will get MUCH more than an online calculator.