BTL 12 Ported Enclosure

[DBARB 0]

So I have a problem

I am getting ready to make a ported box for my BTL 12 that is fully loaded.

my big question is how do I tune my port to 32hz?

the dimensions are 18w x 14h x 20d which comes out to be 2.20812 cubic feet.

can I please get some help and advice I used a slot port calc but I guess the port length looked funny to me.

Subwoofer Enclosure Calculators, Fraction to Decimal, Parallel, Series, Port Length and Volume Calculators

Thank you

Edited June 28, 2010 by DBARB

[NB50 206]

Can you go bigger on the dimensions?

[DBARB 0]

Can you go bigger on the dimensions?

yes I can go bigger like 35W x 14H x 25D

its going in a 09 cobalt ss

[DBARB 0]

Its just weird to me that when I make my port width wider it makes my port length longer..... any ideas

[NB50 206]

Port length is determined on net box volume, port area, and tuning frequency. So when you are changing the area from say 30in^2 to 35in^2 and have the same volume and tuning frequency, you will need a longer port. I would take the extra space you have and add in a double baffle and some bracing.