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Beerdrnkr
04-21-2008, 12:10 PM
Can anyone help me with a ported box design for an 18". Here's the measurements I have to work with, I know it won't be optimal for an 18" but it's all the room I have. I'll pay somebody through paypal if need be.

22"H x 40 1/4"L x 21 1/4"W

Please help me out, Thanks.

psych0ticnemes1
04-21-2008, 12:23 PM
Slot ported or round ported?

Beerdrnkr
04-21-2008, 12:35 PM
Slot ported or round ported?

Slot, in what ever configuration it will fit.

revrider1
04-21-2008, 12:42 PM
WHat sub?

Beerdrnkr
04-21-2008, 12:49 PM
WHat sub?

18" MT it kills me not to have the optimum space but hopefully 5 c/ft or so will work.

iDesignBoxes
04-21-2008, 12:53 PM
desired tuning freq?

iDesignBoxes
04-21-2008, 12:56 PM
i forgot to ask, what are the t/s specs of this driver? they are not listed on RE's website.

Beerdrnkr
04-21-2008, 12:59 PM
desired tuning freq?

Here's some specs:

It's for an 18" MT
Mounting depth is 10.75"
displacement .25c/ft
Tuning I want at 32hz.
I'm not sure about the volume and maybe 90 to 100sq inches of port?

iDesignBoxes
04-21-2008, 01:00 PM
one box design coming up sir. be back in a jiffy. gonna add .3 cubes to this box to account for bracing... this box will need it.

Beerdrnkr
04-21-2008, 01:02 PM
one box design coming up sir. be back in a jiffy. gonna add .3 cubes to this box to account for bracing... this box will need it.

Cool, I appreciate the help.

Beerdrnkr
04-21-2008, 01:20 PM
Sorry I might have my port too small it might be around 140sq inches.

iDesignBoxes
04-21-2008, 01:27 PM
http://img.photobucket.com/albums/v486/mykul_16/remt18design.jpg

galacticmonkey
04-21-2008, 01:30 PM
Go with less port... Try for around 70 sq in. When you have limited space its much better to have the right airspace than a monster port.

80INCHES
04-21-2008, 01:33 PM
Go with less port... Try for around 70 sq in. When you have limited space its much better to have the right airspace than a monster port.
agreed
he can actually get away with 60square inches of port
it wont as long and it wont take up much space

80

Beerdrnkr
04-21-2008, 01:35 PM
http://img.photobucket.com/albums/v486/mykul_16/remt18design.jpg


Go with less port... Try for around 70 sq in. When you have limited space its much better to have the right airspace than a monster port.

So in this case, the box that iDesign made is perfect for the amount of room I have right?

Beerdrnkr
04-21-2008, 02:06 PM
iDesign is there anyway you can do something sub up port up or port front (to the front of the vehicle)? Thanks....Leaving in about 20 minutes to have this built.

iDesignBoxes
04-21-2008, 02:08 PM
They were just saying that if you wanted more space, you could go with less port.

iDesignBoxes
04-21-2008, 02:09 PM
iDesign is there anyway you can do something sub up port up or port front (to the front of the vehicle)? Thanks....Leaving in about 20 minutes to have this built.

Build your box and turn it around and the port will be facing the front of the vehicle :)

Beerdrnkr
04-21-2008, 02:12 PM
They were just saying that if you wanted more space, you could go with less port.

I see. I want it to be loud on the mic and still sound pretty good on music in the space that I'm limited with. If anybody has any ideas for the port specs please let me know.

Beerdrnkr
04-21-2008, 02:15 PM
Build your box and turn it around and the port will be facing the front of the vehicle :)

Sorry man, I'm an idiot I thought the port was facing the side of the box but you have it facing port up sub back right?

BrianChia
04-21-2008, 02:31 PM
Also instead of bending the port 180 degrees, just bend it 90 (L-shape) to reduce turbulence.

iDesignBoxes
04-21-2008, 02:44 PM
Also instead of bending the port 180 degrees, just bend it 90 (L-shape) to reduce turbulence.

This can be done also. Just be sure that there is 5 inches of width throughout the entire port.

Beerdrnkr
04-21-2008, 03:28 PM
Thanks for all the help guys, I have someone building the box for me right now. I only hit a 140.8 legal on the tl yesterday with the sealed box at 56hz....Yeah it ****** but it sounded pretty good and felt louder.