Ported Encloser

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Hey All,

I trying to design a ported encloser for my audiobahn 1006t sub the specs recommend are as follow:

Air Space (cu/ft) = 1.4

Port size = 3" x 6.75

Port Vel: = 24.19

-3db Hz = 30

Tune Freq. (Hz) = 39

Sub (Disp cu/ft) = 0.21

Port (Disp cu/ft) = 0.024

Total Volume (cu/ft) = 1.5


Now, this is the deminsion of my box design: using 3/4 MDF

Height = 20"

Width = 19"

Depth 1 = 8.5"

Depth 2 = 12"

Total = 1.639 cu/ft

I used http://www.bcae1.com/spboxnew2.htm to input all the values...but Im still confused as to where the port goes, does it has to be a 3" hole ...6.75 deep? and where? ...after putting all the values in it came back with a net volume of 1.4(cu/ft) just what the manual recommends for the sub.


Can someone pls help me out?.....Thanks to all
 
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