4 4" Aeros?

[bopo668 10+ year member]

Ok so im building a box to 4^3 with 1 15" sub and i was wondering if 4 4" aeros would be to much or to little, (or could i just use 2 4") would that work to

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[yunvme666 10+ year member]

ive been told 2 6's for daily, altho im unsure about the 4's . i know you can basically cut the port area in almost half tho....

 

[Lakota 5,000+ posts]

Even 3 would be adequate.

 

[Trixter 10+ year member]

i did 3.5 cubes with my 15" brahma and only used 2 4's...sounded great....

 

[bopo668 10+ year member]

all right thx for the help cant do 6" not unuff room

 

[IgnoreMe 5,000+ posts]

1 6", or 2 4"

i mean if you got 4 and can fit them, then why not.

btw 1 6" has more port area than 2 4"ers

 

[thegreatestpenn 5,000+ posts]

4 4"s isn't necessary, but it'd be sexy, especially if they're coming off a different plane than the sub

 

[bopo668 10+ year member]

would the port displacement for one 4" aero that is 20.5" long be .149 i was wondering if my math was right and another thing do i add that to my box and then do it again to figure out how long they need to be.idk im kinda confused my box is. 4.59 with sub displacement and i want 4 4" aeros tuned to 38 any help

 

[Trixter 10+ year member]

would the port displacement for one 4" aero that is 20.5" long be .149 i was wondering if my math was right and another thing do i add that to my box and then do it again to figure out how long they need to be.idk im kinda confused my box is. 4.59 with sub displacement and i want 4 4" aeros tuned to 38 any help

if you already made your box then you need to:

-figure out the port length

-figure out the port displacement

-subtract the displacement from the box's original voulme

-re-calculate the port length using this new volume

--if using the precision ports, subtract 5" from this number and cut your center tube to this length

if your using more than one port, divide the box by the numbers of ports and use this number to figure out the length. cut each port to this size. (this can be done for doing the calculation to find the first port length from the above steps.)

 

[PSturmer 10+ year member]

i just try to get the most i can in there with staying under 18''s long overall. my current spl build will have 4 4'' aeros and 4 12's, these will be very short, like 10 overall but space is very very limited. and another build i am doing 4 15's and 5 6'' aeros (on this build they come out to 18'' long)