Well I wanted to make a ported box for 2 12" Subs and i have some questions. For now, the plans are to port 2 12" Mtx Audio 8000 Subwoofers. each are going to see around 500 rms. The reccomended space for a ported enclosure is 2-3 cu/ft so I used 2.5 for calculations. Now on the questions

1. I used a calculator on the12volt.com and for a box that would be 2.5 cu/ft and tuned to 32 hz would need 13.23 inches of port lenth with a 4 inch diameter. Now from what I remember from asking about ports in the past, there is "Port Noise" Now what exactly is port noise and how would I over come this problem? Its not as simple as putting a 4" pipe in 13.23 inches long?

2. Say i did build this box, what would be better...2 chamber with 2 seperate ports or one chamber with one port? A box with 5 cu/ft tuned to 32 hz only needs a pipe 6.6 Inches. But what about port noise?

Try to explain in noobie terms if you can. Im trying to figure this out!