How do you measure......?

[BlkColly 10+ year member]

2 ports @ 4-1/2" diameter will give you as close to 32 in^2 as you're gunna get

 

[tooshort_128 10+ year member]

yeah, but they'll be hella long...

 

[rumblebee2 10+ year member]

yes a 4" port is 12.56^2 of port area. Generally if using aero ports you can get by with about 1/2 of the port area of a normal slot port...

yes mlstrass why would that be? not saying you are wrong just wondering.

 

[tooshort_128 10+ year member]

So if I can get away with half the required square inches of a slot port then I could do about 6^2in. per cube. If the box is 2.34 after displacement then I'd need 14.04in^2. One 4" at 14.15 inches would give me 12.56. Is this close enough?

 

[snfsh79077 10+ year member]

I am wondering the same thing about aero ports. If it is true that you can get away with half as much area then I would think for 2-2.5 cuft boxes 1 4-4.5" aero port would be sufficient for one driver.

 

[tooshort_128 10+ year member]

Well, snfsh79077 agrees with me. Anyone else think this is okay?

 

[snfsh79077 10+ year member]

Well, snfsh79077 agrees with me. Anyone else think this is okay?

Im just going off hear say lol but I was just recommend by someone 8-12" per cubic foot.

 

[shaneb 10+ year member]

Just take a saw and cut some holes in the box then it's ported. None of this other crap matters...

 

[SSS 18734 5,000+ posts]

Port noise is a result of the friction between the port walls and the air flowing through the port. Round ports generally need less port area because they minimize this surface area.

 

[snfsh79077 10+ year member]

Just take a saw and cut some holes in the box then it's ported. None of this other crap matters...

haha will do

 

[roarzorz 10+ year member]

8-12" per ft of net volume is a general rule for round ports. For a single 12" in 2-2.5ft net volume I recommend two 4" ports.