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View Full Version : will a square port work?



jj53913
05-15-2008, 12:53 AM
I'm tring to put a big box in a small area and don't want the sub behind the seat. I was wondering if a square port (12.5"x12.5")would work as good as a rectangle port (6"x26")?

ladi3sman55
05-15-2008, 01:59 AM
well you get slightly more port area with the square port as far as i know the shape doesnt matter that much.. i say go with the square if its easier.

BrianChia
05-15-2008, 02:06 AM
A square port actually works better (more efficient) than a rectangle because there is less friction from the port walls for the same amount of port area.

ladi3sman55
05-15-2008, 02:07 AM
A square port actually works better (more efficient) than a rectangle because there is less friction from the port walls for the same amount of port area.

in this case its more port area tho :cool:

BrianChia
05-15-2008, 02:10 AM
in this case its more port area tho :cool:

What I was implying was that you could get away with using slightly less port area with a square port vs. a rectangular one (especially a tall and skinny one).

But yes there is more port area in this case; that 0.25 sq. in. will make a pretty big difference. :crazy:

PV Audio
05-15-2008, 02:47 AM
A square port actually works better (more efficient) than a rectangle because there is less friction from the port walls for the same amount of port area.This reeks of thylantyr :laugh:. You'll never see the difference, and if you do it'll be on some testing equipment.

Eugenics
05-15-2008, 02:51 AM
better seal the port too so there is less turbulence.

BrianChia
05-15-2008, 02:53 AM
This reeks of thylantyr :laugh:. You'll never see the difference, and if you do it'll be on some testing equipment.

Same reason why a round port is more efficient than a square one. :D

DD_Dave
05-15-2008, 02:56 AM
i've used square ports with many good results...

PV Audio
05-15-2008, 03:05 AM
Same reason why a round port is more efficient than a square one. :DOh, I thought that was because of the other things I do with round ports :naughty:

jj53913
05-15-2008, 03:11 PM
Thanks everyone for the input. So if a square port has less drag and smaller port can be used would I want to use a little less port? The box is 11.6 cu ft gross. Im putting a solo x 18 in it and its going in a toyota pickup.