Size of Aero port?

[agarabaghi 10+ year member]

So Im pretty sure my internal vol of my box is ~1.3ft^3 after sub displacement.

According to the PSP-Inc.com tool I can run a 3" diameter, 15" long aero port to achieve a 30hz tuning.

This is for a 10" SA10, is this going to be too small of an aero port. I accidentally order the 3" version instead of the 4, and I dont feel like breaking my other box to reuse the port in there.

Advice?

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[Sneakysh13 10+ year member]

Whats the amount of power you plan on using?

 

[agarabaghi 10+ year member]

running an apsm1300 @ 1 ohm ... so ~1000watts... probably slightly less as i don't think that amp does True True rated

 

[THATpurpleKUSH 5,000+ posts]

you will probably experience some port noise at high volumes. Make sure you seal up the hole where the port mounts, don't just secure it with 4 screws.

 

[SMS 10+ year member]

you will probably experience some port noise at high volumes. Make sure you seal up the hole where the port mounts, don't just secure it with 4 screws.

How did you come up with this, not doubting you just courious.

 

[agarabaghi 10+ year member]

Yea, i had a similar box slightly bigger with a 4" port and there was not much port noise if any. i keep forgetting to tell people that this is going in a boat so there is a lot of open air, therefor im not worried about port noise so much ...

im just afraid of damaging the sa10 in such a big sealed box.

Ive heard that 3" size ports on a lot of power will cause noise because of hte air pressure...

 

[hispls 5,000+ posts]

The problem with too small a port beyond noise is that port will eventually fail to control the cone... I suspect 3" aero is borderline adequate.

 

[agarabaghi 10+ year member]

hmm im not familiar enough with aero ports or ports in general to know what that means. I would suspect that it should be better than running the sa10 on 1000wrms in 1.3ft^3 sealed box