1. ## Box numbers please double check

I got my calculations from the 12volt.com. If anyone can double check these I would appreciate it.

Box

W=29
H=11.75
D=10

Port

W=1.6
H=10.25
D=23

Sub Displacement .05

2. ## Re: Box numbers please double check

Originally Posted by HAVINGFUN
I got my calculations from the 12volt.com. If anyone can double check these I would appreciate it.

Box

W=29
H=11.75
D=10

Port

W=1.6
H=10.25
D=23

Sub Displacement .05
What is there to check? you gave some dimensions and a sub displacement

3. ## Re: Box numbers please double check

Originally Posted by HAVINGFUN
I got my calculations from the 12volt.com. If anyone can double check these I would appreciate it.

Box

W=29
H=11.75
D=10

Port

W=1.6
H=10.25
D=23

Sub Displacement .05
I came up with roughly 1 cube tuned to 40hz

4. ## Re: Box numbers please double check

port displaces .218cube + wood thickness

so depending on your wood, it is ~1.7cubes after sub and port

working on the tune

5. ## Re: Box numbers please double check

According to the 12volt.com without port displacement or woofer displacement I am at 1.38 cubes.

10 X 29 X 11.75

6. ## Re: Box numbers please double check

Originally Posted by HAVINGFUN
According to the 12volt.com without port displacement or woofer displacement I am at 1.38 cubes.

10 X 29 X 11.75
multiply those three numbers together
3 407.5 (cubic inches) = 1.97193287 cubic feet

then it all depends on wood thickness

7. ## Re: Box numbers please double check

if your using 3/4" mdf and 29x11.75x10 are your external dimensions, then i calculated 1.0159 after port and sub displacement

sounds right

8. ## Re: Box numbers please double check

Originally Posted by perfecxionX
if your using 3/4" mdf and 29x11.75x10 are your external dimensions, then i calculated 1.0159 after port and sub displacement
That is what I got roughly and I used .75 MDF.

9. ## Re: Box numbers please double check

am i the only one notice'n that that port is WAAAAAAAY to SMALL! 16.4 square inches of port area! r u mad? bro atleast 30. even with a small box

10. ## Re: Box numbers please double check

Originally Posted by d_man1
am i the only one notice'n that that port is WAAAAAAAY to SMALL! 16.4 square inches of port area! r u mad? bro atleast 30. even with a small box
It is a 8 inch sub and it is exactly what DD recommends. Most places would suggest a 3 inch aeroport which would still work fine for daily driving. 30 inches for an 8 inch sub would be like almost having 3 4 inch aeroports which would be a bit overkill. Bro

11. ## Re: Box numbers please double check

Originally Posted by d_man1
am i the only one notice'n that that port is WAAAAAAAY to SMALL! 16.4 square inches of port area! r u mad? bro atleast 30. even with a small box
each of my tens has a 1-1/4 by 12" port in a 2cube enclosure

and I get ZERO port noise

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