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View Full Version : Brahma Box Help....

BDIDDY
01-03-2004, 04:09 PM
Well I received my second brahma and now it's time for the box.....

I have 8.75 cuft. box that all I need is the depth of the port. My port will be 18.5 x 6, and I want the tuning to be 33hz.

This is the box I asked about a while back, it will be fully resined with rounded ports...Also if you think I can go bigger on the box just tell me I have plenty of room...I want it to be loud to the ear, mic I don't care about...

Thanks for the help...

boister77
01-03-2004, 04:30 PM
you can use the port equation found on the jl website. all you have to do is solve for lv, the length of the port.

http://www.jlaudio.com/tutorials/ports/index.html

in your case:

fb=33Hz
av=18.5x6=111in^2
lv=the length of the port in inches

BDIDDY
01-03-2004, 06:13 PM
you can use the port equation found on the jl website. all you have to do is solve for lv, the length of the port.

http://www.jlaudio.com/tutorials/ports/index.html

in your case:

fb=33Hz
av=18.5x6=111in^2
lv=the length of the port in inches

Thanks for the help but I'm out of school right now and don't feel like doing math....

Anyone with Winsd?

Thanks again for the help though..

BDIDDY
01-04-2004, 12:49 AM
Any other suggestions.... ANYBODY???

boister77
01-04-2004, 02:36 AM
what size brahma are you using?

BDIDDY
01-04-2004, 10:28 AM
I have 2 B12's.....

With an MTX 81000d amp pushing them...