Another stupid aero port question

[NJTStang11 10+ year member]

Ok, have a box for my sub and am confused about tuning it properly w/ aeros.

Sub: 15" IA DP

Box: Approx 5.25 cubes w.o sub in

Ports: 2 flared 4" ports

Looking to tune the sub to between 33-35hz

Where do I cut the ports? What length should I be aiming for?

I tried searching and using that calculator thing, but couldn't get it right

Click to read more...

 

[BuckyBoy 10+ year member]

~8-9.5 inches long each according to WinISD

 

[NJTStang11 10+ year member]

Thanks, so I just cut them and glue the flares onto both sides?

 

[05gliguy 10+ year member]

I'd use duct tape unless you want them to be permanent //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[bjfish11 5,000+ posts]

psp-inc.com

 

[NJTStang11 10+ year member]

Ok, I'm still all confused., I understand what everyone is saying, but my box is weird.

Box is 24x24x24

Has cutouts for 2 4" Aero Ports

Inside of box, in the dead middle is:

Full board w/ cutout of 12" sub and again 2 4" aero holes.

At the recommended 9" I'm coming **** close to the interior walls, and it seems weird to have an aero that isn't reaching my middle aero cutout?

This is confusing me because:

A) I'm starting to think this is bigger than 5 cubes, even after displacement

B) PSP wants 1 full port diameter away from any interior walls (mine is right in middle)

C) Dumbest question yet, what do you guys recommend using to cut the aero port?

 

[NJTStang11 10+ year member]

Ok, I'm still all confused., I understand what everyone is saying, but my box is weird.
Box is 24x24x24

Has cutouts for 2 4" Aero Ports

Inside of box, in the dead middle is:

Full board w/ cutout of 12" sub and again 2 4" aero holes.

At the recommended 9" I'm coming **** close to the interior walls, and it seems weird to have an aero that isn't reaching my middle aero cutout?

This is confusing me because:

A) I'm starting to think this is bigger than 5 cubes, even after displacement

B) PSP wants 1 full port diameter away from any interior walls (mine is right in middle)

C) Dumbest question yet, what do you guys recommend using to cut the aero port?

Anyone? Sorry to bump so quickly, just trying to finish this thing up today as I have a 3hr drive tomorrow morning //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[NJTStang11 10+ year member]

bump