2 18's port placement help

[Swan99Hoe]

Alright I have a 1999 Chevy Tahoe and I'm designing my box for my 2 18's. Having a little difficulty deciding on which design to go with. They both have the same tunning and volume. Its port placement im having trouble with. Ive heard and read up on different opinions but I wanted to be sure. Thanks in advance!

Design #1- Bottom Port

Design #2- Middle Port

[Dax]

I'm a newb, but the middle port would prolly be the best because it helps brace the top baffle.

[Swan99Hoe]

I'm a newb, but the middle port would prolly be the best because it helps brace the top baffle.

That's a plus. I've heard that middle ports cause the subs to fight each other to get air out of the port. Lol there's so many factors.

[Dax]

I'm a newb, but the middle port would prolly be the best because it helps brace the top baffle.

That's a plus. I've heard that middle ports cause the subs to fight each other to get air out of the port. Lol there's so many factors.

I have seen a little triangle placed on the back wall to push the air out into the port instead of into the other sub, or you could put a short wall in the middle of the port to direct the air flow

edit: nevermind i just looked at the op more closely an i see that your port doesn't go all the way to the back wall of the box

Edited December 26, 2011 by Dax

[pwdrblucivic]

Is there room to slide the subs hard to one side of the enclosure and move that middle port over to either side upright...Put it in the opposite side of the enclosure where you would like the most pressure up front....in other words port on drivers side = more pressure to the passenger side......I have done several enclosures like this in SUVs and they all POUND.........good luck

Edited December 26, 2011 by pwdrblucivic

[Swan99Hoe]

Is there room to slide the subs hard to one side of the enclosure and move that middle port over to either side upright...Put it in the opposite side of the enclosure where you would like the most pressure up front....in other words port on drivers side = more pressure to the passenger side......I have done several enclosures like this in SUVs and they all POUND.........good luck

Subs up, Port up?

[pwdrblucivic]

No Subs up....PORT BACK BUT UPRIGHT on left or right end of box....

[pwdrblucivic]

tried to change my avatar pic to show you what i mean and it wouldn't take sorry...

Edited December 26, 2011 by pwdrblucivic

[Swan99Hoe]

tried to change my avatar pic to show you what i mean and it wouldn't take sorry...

Ok yea I know what your talking about now. My setup right now is 1 15" sub up, port firing back on the driver side. How does the air flow in the truck vary between ports?

Edited December 26, 2011 by Swan99Hoe

[Bump4life]

What kind of subs are they? and SUbs up port back.