Need some calculation help

[Randy Savage 5,000+ posts]

ok, my box is going to be 2 separate chambers, each with an internal volume of 2.65 after sub displacement. I want to tune it to 36 Hz, and preferably 3" PVC ports, how long shall they be? Jmac I know you can help me out with this one...

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[Randy Savage 5,000+ posts]

Everything in my sig...and thats the vol. after sub disp. but before port, i dont know how much port disp is, im guessing around .075 cu ft?? I dont know, I'm truly lost right now

 

[Randy Savage 5,000+ posts]

Can ya tell me how long theyd have to be? and should i just make a sloted port instead?

 

[Randy Savage 5,000+ posts]

Ok, right now im lookin at like 20H x 34 W x 18 D, volume of 5.74 before any displacements, 5.22 after sub displacement, what dimensions should I make the slot if I have one common chamber?

 

[Randy Savage 5,000+ posts]

THANK YOU THANK YOU THANK YOU THANK YOU JMAC //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Randy Savage 5,000+ posts]

Wiat, I'm lost, how would that port fit in the box?

 

[Randy Savage 5,000+ posts]

Ok, you're saying that the port is 3.25" high, 18.5" across, and 23" deep?

 

[Randy Savage 5,000+ posts]

Ahh, sounds like fun, thanks a lot for your help man, I'm gonna send you some x-mas cookies or somethin