Cubic feet?

Reply Subscribe

Thread Tools

Sep 29, 2009 | 03:30 PM

#1 (permalink)

JoeDeal

Thread Starter

Registered User

Joined: Mar 2009

Posts: 47

Likes: 0

Cubic feet?

I have a 2 12's box that is 15H X 17deep X 28wide. Its made out of 3/4 MDF and has a divider(sealed box). What is the airspace for the box per 12? I have never calculated airspace before so any help is appreciated.

Sep 29, 2009 | 05:17 PM

#2 (permalink)

kpr10is

Maximaniac

Joined: Aug 2003

Posts: 1,551

Likes: 0

Very simple.

1 cubic foot = 12 x 12 x 12 = 1728 cu in.

Measure a single chamber, divide your cubic inches by 1728, and you have cubic feet.

Sep 29, 2009 | 05:20 PM

#3 (permalink)

the727kid

Registered User

Joined: Jun 2006

Posts: 1,593

Likes: 0

2.01 per chamber I believe.

[(15x17x28 )-(.75x15x17)]/1728

__________________
Need anything installed or built? PM me.
MECP Certified.

Alarm: Viper 5200
HU: Stock
Active Set-Up
Tweets: Image Dyamics CD1pro mini horns
Mids: Sundown Neo Pro 8s
Amp: Kicker IX500.4 (2)
Sub Stage
Subs: (2) Dayton Audio 15" HF
Amp: Kicker IX1000.1

Sep 29, 2009 | 05:22 PM

#4 (permalink)

kpr10is

Maximaniac

Joined: Aug 2003

Posts: 1,551

Likes: 0

Ok, I'm bored, so I'll keep going.

If you've got 28 inches of width, and three sheets if 3/4", your internal width is 25.75.
Height is 15 minus two sheets of 3/4, or 13.5.
Depth is 17 minus two sheets of 3/4, or 15.5.

25.75 x 13.5 x 15.5 = 5388.19
5388.19 / 1728 = 3.12 total
3.12 / 2 = 1.56 per chamber

Last edited by kpr10is; Sep 29, 2009 at 05:24 PM.