View Full Version : quick question about porting

09-21-2013, 05:44 PM
So I want to build a box for a sundown sa 8 v2, here are the measurements of the box I plan to build:

Height= 10.5 inches
Width= 28 inches
Depth= 16 inches
Actual wood size:
Front and back = 9 x 28
Top and bottom size = 16 x 28
One side Wall = 10.5 x 16
Wall on port side = unknown
Port size= unknown

What I want to know is it okay to make just make a straight I shaped port or is a L shaped port really required, if its possible to use a straight shaped port how long does the piece have to be to get 35hz, I am not good at using a subwoofer calculator to determine the port so that is why I am asking for help.

Here is a picture of the design I plan to build:

http://i116.photobucket.com/albums/o6/eduardo6_5_0/Untitled_zpsa7ed0c70.png (http://s116.photobucket.com/user/eduardo6_5_0/media/Untitled_zpsa7ed0c70.png.html)

09-21-2013, 08:33 PM
That box is too big at 2 ft^3 gross and even after port area, displacement, bracing etc still being way more than Sundown specs say Ported 0.5-0.75 ft^3 @ 35hz and from what I have read say not to go any larger that. Others in here would be better at giving you a good box design than me.