OK I made a new box (sealed) but I dont know how many cu.ft net it is? the box it the inside is 12"D 27.1/2"H 23"W

with a driver displacement of 0.25 how many net cu.ft is it ????? help!?!?!

4.14 cubic feet

Right around 4.2 cubes internal.

edit: too slow, i suck.

Edited September 27, 200717 yr by J31Rob

hmmm so is that a lil to big for my MJ-18? .....

edit I did not make the box I'm making the box

http://www.the12volt.com/caraudio/boxcalcs.asp Use this it will help you figure out what you need.

OK think you I'm going to make it 3.1cu.ft now

? what would be the down side be to the box being 4.2cu.ft?

Little less power handleing, but not by much. It should be able to play a little deeper and not need as much power.

O OK that's not bad I'll try it

how many cu.ft would a 6" round port about 13" long take up?

0.213 cubic feet

how many cu.ft would a 6" round port about 13" long take up?

You do realize tuning will shift when you put it in since it takes volume...

I know I just need to get an idea of how much displacement it has I'm going to port it to 31hz now I tried it sealed liked the SQ but not enough SPL sooo

Volume of a cylinder....

new box the port

in the car

Ugh, used particle board I see.

yes it's high-density 1 1/8" floor decking it's all I had