BoX Size?

[Da64u 10+ year member]

how do i find out

13.0" x 13.0" x 12.5"

internal volume : 0.85 ft cubed

net internal volume: 0.78 ft cubed

F3, Qtc : 49Hz, 0.7

please help me on how to find these out. thx alot for any help!

Click to read more...

 

[Trixter 10+ year member]

what are you trying to find out? you have the correct nembers...

 

[Da64u 10+ year member]

internal volume : like how do i mesure this so i know how to make my box

net internal volume: how do i find out the internal volume??

F3, Qtc : 49Hz, 0.7 and how do i make my box to this mesurment?

what is the differnce between net and just internal volume?

 

[Da64u 10+ year member]

bump plezz!!

 

[Trixter 10+ year member]

volume is found by multipling (LxWxH) / 1728...dividing by 1728 will give you the cu'. to fint the internal, measure the inside of the box. if you can't get the inside of the box, measure the outside and subtract the thickness of the wood on both sides.....

example: if i have a box that is 14 x 14 x 16 externally and it's made from 3/4" mdf, then i would subtract the wood from each side (since .75 +.75 = 1.5) so now i get 12.5 x 12.5 x 14.5 = 2265.6cu" / 1728 = 1.31cu'.

the net would be after all displacement is accounted for...subtracting the volume of any bracing and the sub itself.

 

[Da64u 10+ year member]

do you know how to find

F3, Qtc : 49Hz, 0.7

i thought thats the port info but its a sealed box....

 

[Trixter 10+ year member]

honestly, since i almost always do ported boxes, i would have to look it up in my notes at home...when i'm on here i'm at work.

 

[Da64u 10+ year member]

so if i knew just the outside demensions, wouldnt all the other specs fall into place since they are the specs the manufactuer gave me?

 

[Trixter 10+ year member]

so if i knew just the outside demensions, wouldnt all the other specs fall into place since they are the specs the manufactuer gave me?

i would guess so