1. ## an someone post port area equation for figuring port area

i don't realy like using those calculators and have no trouble doing the math but i can't seem to find the quation needed to figure min port area

Mat

2. ## Re: an someone post port area equation for figuring port area

umm, just normal area math.

3. ## Re: an someone post port area equation for figuring port area

Where Av is the cross-sectional area of the port (in square inches),
Lv
is the length of the port (in inches)
and Vb is the enlcosure's net volume (in cubic inches).

That?

4. ## Re: an someone post port area equation for figuring port area

no not fig the area i mean using the xmax and tuning freqto determine the min port area needed

5. ## Re: an someone post port area equation for figuring port area

No, I think he means how you determine to proper port area based on your subwoofer...

6. ## Re: an someone post port area equation for figuring port area

yea sorry thats what i mean sorry guys i am tired

7. ## Re: an someone post port area equation for figuring port area

db that determines port lenth after min port area has been established

but thanx

8. ## Re: an someone post port area equation for figuring port area

so what is a good way to figure it out just say around 50 or so for 12's ?

9. ## Re: an someone post port area equation for figuring port area

I generally stick to 12-15 in^2 per cubic foot of enclosure...

10. ## Re: an someone post port area equation for figuring port area

ahh ok that makes since so a 4 cube box would need around any between 40 in^2 and 60 in^2 using 12 and 15 respectively

Mat
thanx a bunch

11. ## Re: an someone post port area equation for figuring port area

i am REALY enjoying learning about this box stuff i like science and math could be why i am a pre med student and enjoy the figuring... although i wish i spell worth a crap or type for that matter

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