6" Ports...

[NYCJEEP]

Anyone here have any experience using a single 6" port in place of two 4" ports for a standard ported enclosure? I am considering it for my 2 IDMAX 12s...

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[KCha 10+ year member]

(1) 6" = 28.26 in^2

(2) 4" = 25.12in^2

All depends on what you need/size of box. Some people say the size of the box doesn't matter on port area, but to each their own I guess.

Also, remember aeroports allow more movement of air the slot ports -- so less is needed.

 

[BEAVER.989 10+ year member]

a single 6" port has twice the port velocity of two 4" ports. port noise could be a factor.

 

[NYCJEEP]

So you think a single 6" port would be more susceptible to port noise compared to two 4" ports? The only reason I want to use a 6" is because it would fit better between my 2 subs...I only have 40" wide to play with and right now the 4" ports are crammed in between...

 

[BEAVER.989 10+ year member]

A 6" port has twice the velocity of two 4" ports. That's a fact. Chances are you will introduce a substantial amount of port noise. If it's in a trunk, who cares? But if it's sharing the same airspace as you are...

 

[NYCJEEP]

I thought less port area is more prone to port noise? I would assume there is a limit to how big you can go before encountering problems or down sides...

 

[BEAVER.989 10+ year member]

I thought less port area is more prone to port noise? I would assume there is a limit to how big you can go before encountering problems or down sides...

You won't have less port area if you're doubling the amount of ports.

 

[PSturmer 10+ year member]

So you think a single 6" port would be more susceptible to port noise compared to two 4" ports? The only reason I want to use a 6" is because it would fit better between my 2 subs...I only have 40" wide to play with and right now the 4" ports are crammed in between...

no less chance. more port area and a better perimeter vs. area ratio. people have done this before and have seen gains. its more about the space you are working with.

 

[AudioXtremes 10+ year member]

God so much bad info on here from people who think they know.

A 6" port has less surface drag and is more efficient. A 6" aero will have less noise than 2 4" aeros cause less surface drag on the air and a larger diameter opening will reduce chuffing.