im thinking about making a bandpass subwoofer box and i was wonder how i would find out the specs for my model in google sketchup.

[Jireh605]

https://copy.com/7gGPat7mpVgEcioq <link to download the model for my box idk if it counts as a 4th order bandpass or not im not a pro at this.

[Triticum Agricolam]

What kind of specs are you looking for? I took a look at your model. Your sealed side looks pretty small and I'm not sure what you have going on with your port.

[Joe X]

If this helps?

But wall have no thickness and you are not stating what subs are going in?

[Jireh605]

im thinking about getting 2 JL Audio 12WXv2-4's the box is going to have 3/4th inch thick mdf i guess.. all i hear people talking about lol.

[Jireh605]

and i wanted to know like the tuning frequency,if thats possible without the real box itself.

[Jireh605]

i remade the box with a bigger sealed section

https://copy.com/8gXUOO3T30GjWwaX

[Joe X]

Without wall thickness it is not possible to calculate anything.

[Jireh605]

i dont know how to set wall thickness in sketchup i want 3/4th inch thick walls

[Triticum Agricolam]

Use the Push/Pull tool on your walls to pull them out to the thickness you want.

There are tons of good videos on YouTube to teach you to use SketchUp. https://www.youtube.com/user/SketchUpVideo

[Joe X]

OP your box design doesn't start with a sketch though, you need to calculate the size of your chambers, tuning and port area for the expected performance and then lay it out on sketchup.