I have been out of the custom box game for a while. I have few general questions. I am going to build a box for my Trailblazer SS this weekend. I have 2 10" subs. I am trying to keep the box reasonably small. Going by the recommended specs for the speakers. I have taken the specs and doubled them. If I build a sealed box it will need to be 30."L x 9.75"D x 12.5"H. If I build a ported one it will need to be 30."L x 15"D x 12.5"H. I realize that a ported box will be more efficient but I am not sure how deep the ports need to be and how big around they need to be. That is why I haven't already chosen to go ahead with the ported box. Should I run a separator between the speakers with either box? Also what thickness wood should I use? I have a choice between 1/2, 5/8 3/4.

Here is a link to the site I got my info from. http://www.crossfirecaraudio.com/frameset.asp

I am running P110D subs. If you go to tech info at the top then click on subwoofers then choose the P1 option then choose P110D it will bring up an adobe file that tells all the specs.

Thanks
Jason

 

I would use 3/4" MDF....don't use particle board, that seems to be a common mistake.

Port dimensions vary based on the recommended tuning frequency of the subs, volume of the box, etc etc...if you want to keep it simple, definitely go sealed.

If you are running the subs off a mono amp or bridged (ie...if each sub is getting the exact same signal) then it's ok to run a common chamber. If they are each running off their own channel, however, then put in a divider or they may be fighting against eachother.

 

Yes use 3/4 MDF, a good sized sheet cost like $30 at like Home Depot. If you are going to use a ported box the instructions on your sub should say what the dementions the port should be. If you need help on port demintions go here, the website HAS EVERTHING, even if you want to build a round sub box, just put in the dementions and in no time you will have a rounf sub box.

http://www.the12volt.com/caraudio/boxcalcs.asp#por

 

Thanks for the help guys. I am going to be running an old school punch 100 with the chip fliped to mono. So I could run a common chamber then.

 

3/4 inch is over kill 5/8 will be fine, use a divider in the sealed box, not on the ported, Oh yeah MDF is the only stuff to be used

 

Here, down load this software. It is very helpful on how to build your box. You can change the port shape and how many ports. In MM and inch.
It dose not have you sub, so you will have to input the sub specs.
You can use 5/8 over the 3/4, but on both the 30L I would put in a 1 1/2 support. I would not use a divider.
link