Does anybody have any dimensions for a speaker box for a 87 coupe. I want to put 3 10s in it. I'm gonna build it myself i just need some dimensions

 

that would depend on the speaker, not the car.......

 

It depends on your space in the car and how much room your willingto give up as well.

 

Typically going with a sealed enclosure you are looking at .70-1 cubic feet per sub, this varies from manufacturer to manufacturer. I have an 1993 LX notch and have my sub upards firing (12" L5). With in the technical range you adjust the box size to your preferance in music.

 

Honestly I see no logic behind having 3 10's. I think you'll be better with 2 10's and a 12 or just two 10's. Even 1 10 and a 12 would be better if you push more power because you can hit a better bass range. And use fiberglass, looks better then a box.

 

depends on the 10's. If you get a 6 ohm 10" you can wire all 3 to a 2 ohm load on a mono amp.

 

I'm sorry, but define better bass range. Also, what is your reasoning behind using woofers of different sizes and how do sub sizes relate to "power push."

I agree that fiberglass looks better.