Check this for me

tuck05
10+ year member

SLAMMIN ORGASMS
4 cuft net tuned to 38 hz. Inside of port is 15.5" high x 3" wide x 14.5" deep. 15.5*3.75*14.5/1728 = .49cuft of port area. .2cuft for the sub. 4cuft +.49+.2=4.69cuft. 24"x24.73"x17" with wood should get me 4.69cuft.

Look good to you guys?

 
port area is measured by multipling the width X height of the opening....you have 43.5sq".

to tune a 4cu' box to 38hz using a port with the area of 43.5sq" the port will need to be 14.89" long....make your 14.5 a 14.75 and you be closer

 
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tuck05

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