View Full Version : 2 l7 12s box help

12-18-2006, 03:14 PM
I am looking to build a new box in my colorado for 4 12in. L5s. i am gonna be taking the backseat out this weekend. The box limits are 50 wide x 20 tall x 20 deep. im wanting to tune around 40hz(i know its high, but i want it tuned high so i can compete a lil and then still have some good daily bump). how should i do the port and stuff? any one got any good box designs? this will be going into a 07 colorado crew cab

12-18-2006, 03:18 PM
I would tune it between 34-38 if it were me.

Beyond that, search for box designs

12-18-2006, 03:20 PM
Heres one I built for a forum member. I can design you one if you give me your MAX parameters. This one was built to kickers specs.


12-19-2006, 09:52 PM
bump to the top with new measurements

12-19-2006, 10:07 PM
Here you go:

Desired Tuning Freq: 40 Hz
Width= 50.00 inches
Height= 20.00 inches
Depth= 20.00 inches
Port Length= 3.52 inches
Driver Volume= 8.99 cu/ft

Let me know if you want a drawing.

12-20-2006, 04:30 PM
here a pic'