Trying to figure out how many cubic feet my box is. Can someone please leave the formula. Thanks.

 

V=L*W*H

 

if you measure it in inches make sure to divide by 1728 to get your answer in cubic feet.

 

Make sure to use inside dimensions of the box too.

 

lol
v=LxWxH / 1728 , dont foget driver displacement, mounting depth, and thickness of wood

 

Who knew that actually staying awake in math class would come in handy when working on our Maximas

 

If Vas is given in liters instead of cubic feet measure in cm. V = L x W x H / 1000 = liters. Or, divide Vas liters by 28.32. 28,317 cc in one cubic feet.

 

I used to play with those numbers so much when I was building about a box every 2 weeks that i could almost do the calculations in my head...pretty scary. It gets really fun when you have wedges or angles in the boxes. Don't forget to account for triangular shapes!

V= (w x h x d/2)

 

I still do it in my head. And convert from metric to english or the other way around as well. I normally guestimate a little. But I have never been off by enough to hear a difference.

 

Also don't forget to subtract the displacement of the woofer spider & magnet assembly as well. Most manufacturers list this on their spec sheets.

Tony

 

true true.. it's been said that a 10% volume error is very hard to hear.. never tried it myself tho..

 

When reviewing my guestimates with a calculator before cutting I don't think I have ever been off by more than a few percent of a cubic foot. So long as I can keep it that close with a guestimate, I can confidently evaluate potential locations for use to fit an enclosure. If I were to switch to ported boxes I would have to do the math in my head more carefully to verify enclosure volume, bracing volume, port volume, sub displacement, etc.

 

good call.. I forgot to mention ported boxes are much more sensitive to error..