bopo668

11-17-2007, 01:50 PM

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

View Full Version : 4 4" Aeros?

bopo668

11-17-2007, 01:50 PM

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

yunvme666

11-17-2007, 02:16 PM

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

11-17-2007, 03:26 PM

Even 3 would be adequate.

Trixter

11-17-2007, 03:45 PM

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

bopo668

11-17-2007, 06:40 PM

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

IgnoreMe

11-17-2007, 06:45 PM

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

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

11-17-2007, 09:06 PM

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

bopo668

11-18-2007, 07:01 PM

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

11-19-2007, 03:27 PM

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.)

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

11-19-2007, 04:44 PM

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)