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  #1  
Old 09-11-2015, 06:04 PM
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Default Dodge Ram 3 Subdown X 15" 4th order build

Can someone please fix the typo in the title? my stupid phone always does that.

I am starting a build in my Dodge Ram 2500 Diesel.

First off I have 3 Sundown X 15's with SPL cone and spiders and NSv3 coils. (These subs were used in the Sundown demo Tahoe for a little while)

I have designed and am in the process of building a 4th order. It is a 2.5:1 tuned to 46 with 412.5 square inches of port. Double baffled all the way around. It's going to take around 6 sheets of mdf in total so 600 pounds not including bracing or subs. I will also be installing an acrylic window in the front. This will also be my first attempt at a 4th order build.

I'll be adding pictures to the first post as I take them. Not sure what kind of amp or amps I'll be using yet.

















This picture is just to get an idea on what the box will look like. The sealed section is actually quite a bit smaller than it looks in this picture.


9/17

Yesterday i bought two sheets of MDF and somehow ended up making a wrong cut and thought i ruined both sheets because they were no longer large enough. It upset me pretty bad that i had thought that i just wasted $70 worth of wood but today I ended up using some of it by joining two pieces together and glued it for extra strength. It seems to be just as strong as one piece would be. I should be able to get most of the box cut tomorrow.





9/19

Please excuse the mess in the truck. I was in the process of getting everything cleaned out while i was taking the pictures.







The box is a bit too big at the top so im going to have to cut off the edges and add some fiberglass


Might have cut off a little more than i needed to but at least it fits now


9/20

Doing some more test fitting. It's almost ready to be put together. It's only about a fingers width away from the windows on each side. Also got most of the pocket holes drilled today.









9/21













9/25

Got the fiberglass done and most of the port paint done. won't be much longer and it'll be playing.



9/27

it's still not done but it's close. still have a few small things to do.

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Last edited by DevinG17; 09-27-2015 at 05:55 PM.
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  #2  
Old 09-11-2015, 06:06 PM
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Tuned
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Old 09-11-2015, 06:47 PM
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Love the intro statement, lol...

Tuned..

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Old 09-11-2015, 07:12 PM
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I like that box design
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Old 09-11-2015, 07:20 PM
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Originally Posted by mr505 View Post
I like that box design
Thanks. I was originally going with 2 18's 4th order and a massive 16" wide port on the passengers side. But I saw these subs and couldn't pass them up.
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Old 09-11-2015, 07:48 PM
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Devin, have you considered using birch wood? Its around 20$ more per large sheet....but would cut down almost half the weight and be more solid for you. And btw....this looks like its going to be an awesome build! I just installed one of my 2 Sundown X15v2's in my car and its brutal, impressive being ony saz2500v2 at 1ohm too. You will love those subs!
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Old 09-11-2015, 07:53 PM
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Quote:
Originally Posted by IS300IAdeathRow View Post
Devin, have you considered using birch wood? Its around 20$ more per large sheet....but would cut down almost half the weight and be more solid for you. And btw....this looks like its going to be an awesome build! I just installed one of my 2 Sundown X15v2's in my car and its brutal, impressive being ony saz2500v2 at 1ohm too. You will love those subs!
I have but in my area they only have the 6 or 7 ply birch and I heard it's better to use higher ply but I haven't been able to find any.
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Old 09-11-2015, 07:56 PM
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Quote:
Originally Posted by DevinG17 View Post
I have but in my area they only have the 6 or 7 ply birch and I heard it's better to use higher ply but I haven't been able to find any.
For what its worth....ive always used 6-7ply....once in a blue moon i get the 12 or 13ply....but ive never had one issue with box flex, or anything with the 6-7ply. Its still more solid than mdf
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Old 09-11-2015, 07:58 PM
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Quote:
Originally Posted by IS300IAdeathRow View Post
For what its worth....ive always used 6-7ply....once in a blue moon i get the 12 or 13ply....but ive never had one issue with box flex, or anything with the 6-7ply. Its still more solid than mdf
Sounds good. I'll grab a few sheets and try it out.
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Old 09-14-2015, 11:55 PM
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Tuned in
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