I got a box from a buddy, he used a universal design, I was wondering how I could make it a little more personalized to my sub. It's not a bad box, but its not as loud as it could be. Can someone give me a little help figuring out what size I should change the port to? I don't have a laptop right now so programs that could help me design this aren't an option..
The box is 30 wide X 15.5 tall X 14.25 deep, the port is 2 X 14 tuned to 35hz. It's for a sundown SA-12 D4 ran on an audiopipe APSM-2000 in a newish model Nissan Altima.