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rpfuror
01-07-2007, 06:30 PM
Here is my current build.

I just got my amps and subs Jacked so itís time for a complete build (Thanks to insured equipment). The box is the start then there will be a hidden amp rack and a couple of spot welds and medal beams in-between the bottom brace of this box and the frame. (This time if someone wants the system they will have steal the truck)

The box is for 2 12" Fi Q 5cu/ft @ 33Hz

Here is the 3d design

http://i135.photobucket.com/albums/q145/rpfuror/12_Fi_Q/build_000.jpg

Back and Bottom with Port Braces

http://i135.photobucket.com/albums/q145/rpfuror/12_Fi_Q/build_001.jpg

Another Angle

http://i135.photobucket.com/albums/q145/rpfuror/12_Fi_Q/build_002.jpg

Port Base and Front

http://i135.photobucket.com/albums/q145/rpfuror/12_Fi_Q/build_003.jpg

Another Angle

http://i135.photobucket.com/albums/q145/rpfuror/12_Fi_Q/build_004.jpg

Here is both sitting with the sides.

http://i135.photobucket.com/albums/q145/rpfuror/12_Fi_Q/build_005.jpg

Port Compplete and Front.

http://i135.photobucket.com/albums/q145/rpfuror/12_Fi_Q/build_006.jpg

Inside Port Angle Rounded (the final cutt is also rounded completely)

http://i135.photobucket.com/albums/q145/rpfuror/12_Fi_Q/build_007.jpg

Port Added to the the other assembly.

http://i135.photobucket.com/albums/q145/rpfuror/12_Fi_Q/build_008.jpg

I'll add more when I get further along.

OneKrazyKeebler
01-07-2007, 06:32 PM
I get the feeling youve done this before.......


Lookin good man. Keep the progress comin

rpfuror
01-07-2007, 06:35 PM
I have built 6 members boxes in the past month... bout time I spent some time for me;)

Calikid
01-07-2007, 06:36 PM
****



gN.

PowerNaudio
01-07-2007, 10:03 PM
looking good. i wish i could find some time to build my enclosure lol. i have a sub thats been sitting for an enclosure for over a month now. i build enclosures just not for me. lol. let me know how you found time to build your personal enclosure. lol

keep the pics coming. looks really good.

baseballer1100
01-07-2007, 10:07 PM
Im loving that idea.

Wkbdkid
01-07-2007, 10:11 PM
Props to you:thumbsup:

nismos14
01-07-2007, 10:47 PM
Nice lookin forward to the final results.

angrytrucker78
01-08-2007, 12:33 AM
So I guess the myth/rule about 8:1 port ratio is just that, myth? Not being a ******** here, actually thought about doing the same thing with mine, but was told it wouldn't be a good idea because of said ratio.

lilmaniac2
01-08-2007, 12:34 AM
interesting way to build it

JohnBlayz142
01-08-2007, 12:48 AM
So I guess the myth/rule about 8:1 port ratio is just that, myth? Not being a ******** here, actually thought about doing the same thing with mine, but was told it wouldn't be a good idea because of said ratio.That rule is more applicable when dealing with super narrow ports....


edit: not a very technical explanation, but i have found on big boxes with big ports, ports like that work fine, whereas when building a smaller box/port that's really narrow, you should try to make it 8 or 9:1 or less.

evan
01-08-2007, 02:44 AM
How come you didn't make the port braces go all the way along the port? Are you worried about turbulence caused by the separate pieces of brace?

rpfuror
01-08-2007, 06:32 AM
Not worried about turbulance, as I will smotth everything over at the end.

As far as the port ratio, I have alwas done well with uisng around 13 x the gross volume for for sq/in of port volume. If I stck close to that I hae never had any negitive responce, but I have only tested this in vechiles with large volume to work with lke my Jeep in this case..

saywhat?
01-08-2007, 06:41 AM
i wouldnt of made the port like that. but...it looks good.

rpfuror
01-08-2007, 08:27 AM
i wouldnt of made the port like that. but...it looks good.

Ok, how would you have done it?

I have built several similar designs with positive results... critisim is always welcome;)

PV Audio
01-08-2007, 11:39 AM
Well, firstly, those little braces really aren't going to help anything and they only add turbulence. If you're bracing the box, the port is the last place you want to do it in. You're damping a part of the box only inches away from other bracing (the panels themselves), so it would be more beneficial to put it in the chamber itself. Unless you round the edges over in the end, then you're going to meet some turbulence. I wouldn't have done it that way personally. :)

rpfuror
01-08-2007, 12:01 PM
Actually all the internal corners of the braces were rounded before the 2 main peices were put toghether. It just was not shown in the pictures.

W8 a minute
01-08-2007, 06:58 PM
I love the fact that you built the port like that.
I can't stand seeing 2 subs in a box with a slot port at one end of the baffle. It looks off balance. It might work but it's not aesthetically pleasing.

Your port = :naughty:
Slot port in between 2 subs = :yumyum:
2 subs and a slot port at one end of the baffle = :blackeye: