I'm sure this has been asked before, but searching did not give me the answer I'm looking for, so here is my question.
from the builds i have seen it appears that when using aero ports most people don't necessarily follow the traditional rule of 16sqin of port per cubic foot of box volume. is this correct? if so, is there a formula for how much port area to use per cubic foot when using aeros?
I've seen a few people suggest using 1 6" aero port per 15" woofer, so for example a box for 4 15's @ 4.5cuft per woofer would be 18cuft, with a normal slot port i would go with approx 288sqin of port, but according to what i have seen suggested that box would only require 4 6" aeros, which is only 113sqin of port. how do you get the same or better performance with less then half the port area? are aero ports really that efficient?
I'm thinking of using aeros on my next build, but i would like to learn more about them first.
I have had 2 boxes with aeros and they both are 4ish cubes with a single 6" aero and I think it fits nicely. It's not what or how many aeros per sub, but to the size of the box. I honestly think a 6" aero per 3-4^3 is sufficient for daily. 7^2/cube is a common ration. some say 8-10^2, other say 10-14. Anywhere from 7-10/cube DAILY is perfect IMO
The only answer I have been given are that aeros are more efficient. This has been from quite a few LOUD record setting individuals as well. So I just don't ask questions. Its kind of like asking why the sun is bright. It just is.
The only answer I have been given are that aeros are more efficient. This has been from quite a few LOUD record setting individuals as well. So I just don't ask questions. Its kind of like asking why the sun is bright. It just is.
I like that, and i have definitely seen lots of very loud setups using aero ports. i have just been reluctant to spend the money on them vs building a slot port if i wasn't sure i would get better results from the aeros.
so can I expect equal performance from a 4cuft box with a 6" aero port as the same box with a traditional 64sqin slot port? (assuming same net volume and same tuning)
edit: wow y'all answered quick. thanks guys, very helpful responses
Port placement as well as solidness (no vibrations due to movement, keeping it sterdy) affects alottt as well. External and internal mounting too. As well as the vehicle. Seen some trunk cars do comparisons with same size boxes but slot/aero ports and slot was louder on the mic. Just all depends
Aero's, unless used for SPL intentions, are mainly used for people with a smaller area for the box. There are advantages to both slot and aero ported designs.
It's all install and vehicle dependent. This whole Car Audio game is about R&D. Tommy Mckinnie could come in here right now and say I should put this setup in this vehicle. Now lol he may get it right. But a better chance is that he's way off because of endless variables. Aero's are more expensive...it all depends on you and availablities.
Yes but also a lot of people that would do that have experience with those vehicles. Would a person with major crx knowledge give an opinion to someone with an suv?? Not so much
If you have questions on aeros id pm tommyk. He is very knowledgable.
the setup i'm working on now is for my suburban, it will be 4 AQ sdc2.5 15's on an aq2200 running 1/2 ohm. eventually it will be 6 sdc2.5 15's on 2 aq2200's strapped at 1.33 ohm. i'm trying to do a lots of cone area/little power setup since i have more room then money to work with.
the box for the 4 15's will be subs up/port back. once i go to 6 15's i may stick with that or maybe wall it behind the 2nd row, not sure yet.
How the air flows from the port thruout the vehicle is also a big factor. You might be louder with rearfiring ports as compared to side or front firing.
Using SPY's method...slot=12-16^2/cu. aero=7.2-9.6^2/cu. I agree with Matt and alot of other box makers have very similar thoughts on it.
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