View Full Version : port question

09-21-2007, 04:53 AM
i have a few questions on how to avoid as much port noise as possible.

1.) Even if you can get a tuning for a ported box correct with just a port going straight back, and not going in an L shape, is it better to make an L shaped port to the correct tuning or will a | port still work the same??

2.) What is the best way to brace a box to avoid any noise occurance?


if you have any questions on what i mean, just ask. i will be building a new box for my mach 5 spl 12. im thinking around 3.25 cu ft tuned to 35 hz before sub displacment.

09-21-2007, 12:18 PM

09-21-2007, 12:28 PM
straight ports always seem to be louder, since there is no need for sound waves to take a 90* turn. Sand the edges of the port inside and out. At least 35sq. in. of port, the more the better:)

09-21-2007, 03:01 PM
sanded ports ftw!!!

PV Audio
09-21-2007, 03:09 PM
Box is 1 cubic foot too large. And yes, L ports have different calculations, but they're pretty similar.

09-21-2007, 03:39 PM
the testing box for the proto was 3.65 cu ft. they recommend 3.5 cu ft...i already have a box that will be 3.0 cu ft tuned to 33 hz and sub displacment, so when it arrives i will just pop it in that one and see how it sounds.