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Plottin4success
11-22-2008, 02:42 PM
I just ordered a 12 FI BL fully loaded. Its going to be ran off a Hifonics Brutus BX1608D at 1ohm. I am building a truck style ported box. I want to run aeroports so that I can make the box a little bit smaller and retain some legroom. My measurements are...

56" width
15" high
7" top depth
9.5" bottom depth

This should come out to about 2.87^3 ft before port, driver, and bracing diplacement. I want the box tuned around 32-33hz. After all that, it should be about 2.5^3 ft if Im right. my question is what size port should I use and how long should it be to yield 32hz? I should need about 37" of port area right? Also, should I face the port forward, sideways, or up?

Plottin4success
11-23-2008, 04:00 PM
Bump

JBGabriel
11-23-2008, 10:51 PM
Port to the side. I would use one 6 inch port or two 3inch. With a six inch your gonna have a 23.6 inch length. Your best is prolly with two 3 inch and both ports have to be 11.8 inches long.

skmfkr
11-23-2008, 11:05 PM
i always had my port facing the passenger side in my reg cab dakota. i think 1 4" aero you should be fine. as for which side is better i dunno. i guess you could just cut a hole and put the port on one side then cover the hole on the other side.

JBGabriel
11-23-2008, 11:08 PM
With one 4" you might have port noise. I put together a hd310 with only 1 4" aero and there was a little port noise. With more cone area and a bigger box I imagine it would be worse.

IDSkoT
11-24-2008, 03:12 AM
I just ordered a 12 FI BL fully loaded. Its going to be ran off a Hifonics Brutus BX1608D at 1ohm. I am building a truck style ported box. I want to run aeroports so that I can make the box a little bit smaller and retain some legroom. My measurements are...

56" width
15" high
7" top depth
9.5" bottom depth

This should come out to about 2.87^3 ft before port, driver, and bracing diplacement. I want the box tuned around 32-33hz. After all that, it should be about 2.5^3 ft if Im right. my question is what size port should I use and how long should it be to yield 32hz? I should need about 37" of port area right? Also, should I face the port forward, sideways, or up?


Well, I don't know where you're getting 37", but with a single 4" Aero, you'd need to have it 9 inches long, for double 4", they'd need to be 21" long, and for a single 6", it needs to be 22.5" long... I'd pick either the double 4", or single 6". Whichever works best in your box. As for which side the port should face, it's PURELY based on your car. The only real way to figure it out is to test it out.

EDIT:: Another option is dual 3", 11.25" long.

Plottin4success
11-24-2008, 11:04 AM
Well, I don't know where you're getting 37",

From what I've been told, the general rule of thumb is 15" of port area for every ^3 ft, right? If not, then I was mis informed on this site from somebody.

Plottin4success
11-24-2008, 11:04 AM
BTW, thanks for the help guys. Much appreciated!!!

Plottin4success
11-24-2008, 11:41 AM
Also, where can I find Aeroports? I dont really want to use PVC pipe, and there arent any good audio shops where I live. I found some on Crutchfield, but the 6" port is only 6" long.

thegreatestpenn
11-24-2008, 11:44 AM
www.partsexpress.com or www.edesignaudio.com

Plottin4success
11-24-2008, 11:57 AM
$hit, I never even thought of checking ed, and I forgot about parts express. Thanks!!!

thegreatestpenn
11-24-2008, 11:59 AM
ed's are cheaper, but partsexpress is an hour away so its pretty much next day shipping for me.

skmfkr
11-24-2008, 12:55 PM
From what I've been told, the general rule of thumb is 15" of port area for every ^3 ft, right? If not, then I was mis informed on this site from somebody.

12-16square inches is for a slot port. and i think the more square the shape the better as opposed to long rectangular shape

audiobahnuser18
11-24-2008, 12:59 PM
Talk to mike at Www.ThrillerAudio.com

Plottin4success
11-24-2008, 01:41 PM
Now for my final question. Can i just buy the flared ends and epoxy those to the correct length PVC pipe? Seems like that would be cheaper than buying the plastic tubing and connecting rings.