need help with subs...

[StereoInstaller1]

Yes, you do have an opening in the back. You just haven't seen it yet!

Pull the trunk liner. It is there. Smack dat hoe with a hamma, it'll pop right out.

If you want to run 2, go for it, but you will have either half as much power or overheat the shit out of that amp.

Dividing the box is pointless. You cannot divide the output of the box, so dividing the inside will make the box stronger, but aside from that is a waste of time/wood/weight.

Luke

[1991 e30 bmw 318is]

well i don't have a opening in my seats so its staying in the back i will be using the 2 subs. ok so my box should be much smaller then what i was thinking. whats the difference if i divide the box or not?

[StereoInstaller1]

Thanks, Jean.

[Jean]

That box is just sick!

[StereoInstaller1]

1. Use 3/4" MDF
2. Don't bother dividing the box
3. Use only one of those woofers, 2 is going to be less loud, believe it or not.
4. 13.5 X 13.5 X 33.5 is 6105 cubic inches / 1728 = 3.53 cubic feet, nowhere near 5 cubic feet.

If you build your box with an angle on the front, you can fire the woofer through the ski hole. You will gain as much as 6db by doing so, as long as you COMPLETELY seal the woofer against the trunk wall, like so:


The box should look something like this:


Good luck!
Luke

[Jean]

Looks like it states the size on that page - Sealed Box Volume 1.48 FT/3

[1991 e30 bmw 318is]

I bought some really cheep 12" subs and amp i have a 10gauge wiring kit. all i need to know is how big to make the box. i think its going to be a sealed box. and should i use 5/8" or 3/4" mdf? do i divide the box in between the subs? and i will probably just paint the box with rocker guard. was thinking about height 15" depth 15" width 35". is it too big or small? it will fir right between my shock towers and the amp i will mount on something on the side or make the box a little lower and it might just fit on top of it. (its about 5cubic feet) and suggestions will be a help. and the subs are... http://www.bestbuy.ca/catalog/prodde...gon=&langid=EN
and i know there cheep but its all i need in this car.