[P3 12s]

There's a lot of calculations that go into tuning the box to a certain frequency with a given volume, so i really suggest getting the chance or finding a friend to download the torres calculator. It's easy, you put in the overall dimensions of the box, then you change the cross-sectional area and length of the port. I'm still working on designing my box and I'm actually getting help from another car audio buddy. From what I hear, it's the best calculator out there so far.

[P3 12s]

Have you tried the torres box calculaltor? I know the p3 12 suggests about 1.75ft^3 volume so aim for that. Then adjust the port dimenstions to get the frequency that is desired.

[Help with first system]

Do it right the first time, I decided to go cheap on my first build, and I got rid of it almost instantly. As a rule of thumb, decent mids with SQ and loudness should be at least $100 retail

[shopping list. for garage project]

I just used a typical home receiver hooked up to fosgate power series compenent speakers. I used a car battery and battery maintainer for the amp and sub.

[FS: Rockford Fosgate P300-1]

PM me on pricing if you still have it.

16504