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Old 09-09-2010, 03:56 PM
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Default Best way to brace a box for...

So I am building the box this weekend for a 15" Sundown Z V2. I was wondering what the best way would be to brace it. It is for daily use, if that matters. I was going to go with two pieces of threaded rod, but wasn't sure if it is the best route to take, or just double baffling it... If anyone can chime in, it would be great. I know I don't need tons of bracing, but won't be able to get by with a regular box either. All help will be greatly appreciated. Thanks, Mike.
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Old 09-09-2010, 04:01 PM
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Quote:
Originally Posted by MikeyF View Post
So I am building the box this weekend for a 15" Sundown Z V2. I was wondering what the best way would be to brace it. It is for daily use, if that matters. I was going to go with two pieces of threaded rod, but wasn't sure if it is the best route to take, or just double baffling it... If anyone can chime in, it would be great. I know I don't need tons of bracing, but won't be able to get by with a regular box either. All help will be greatly appreciated. Thanks, Mike.
How Big is the box? But SA-Z v2s aren't the lightest woofers out there so I would double baffle to be safe. How big is the box going to be? And is it a slot or aero port? Could use 1" wooden dowels. or scrap MDF strips about 3-4" wide.
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Old 09-09-2010, 04:06 PM
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Interior bracing is much more effective than using a double baffle; however, as stated, because your woofers are heavy I would be sure to use one.

Remember that if you use interior bracing such as strips of MDF or 2x4s, it will affect airflow. Therefore, I'd highly recommend sticking with a 1" dowel or threaded rod, as planned.
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Old 09-09-2010, 04:11 PM
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Definitely didn't want to use scrap MDF, for the reason of it taking up airspace, as you stated l4y. Double baffeling will take up airspace as well, so I would have to redesign the box, correct? It will be 3cubes, with a slot port.
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Old 09-09-2010, 04:24 PM
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Double baffle won't take up too much space, but I still factor that into my designs. Go with the threaded rod or dowels because they won't affect the air flow as much.
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Old 09-09-2010, 04:24 PM
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Quote:
Originally Posted by MikeyF View Post
Definitely didn't want to use scrap MDF, for the reason of it taking up airspace, as you stated l4y. Double baffeling will take up airspace as well, so I would have to redesign the box, correct? It will be 3cubes, with a slot port.
Yes. I always design my boxes on the large side, then take away volume by adding bracing or 45s in the corners.

imo, scrap MDF doesn't really sound like it would do much to brace a box at all. Unless you're talking about a window brace, or something... Dowels and 2x4s will be stout, but will take up airspace. 2x4s are rectangles and that might mess with your airflow, so I'd choose dowels or threaded rod...
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Old 09-09-2010, 04:25 PM
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Double baffle won't take up too much space, but I still factor that into my designs. Go with the threaded rod or dowels because they won't affect the air flow as much.
Double baffle will take up a ton of space, unless he can put it on top of the front baffle he already has.
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Old 09-09-2010, 04:31 PM
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double baffle will be fine to support the weight of the sub. not really needed but if you want to so you feel better about the weight go fo it.
as for any bracing.
i would assume you are going to port it. theres your bracing right there. hell with adding anything else. its not going to be a huge box for a single 15" and with the port wall that will give more than enough support. anything more is just taking up space and you will need to make your enclosure larger.

pointless to do that when its not needed.
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Old 09-09-2010, 04:32 PM
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Quote:
Originally Posted by l4yfr4me View Post
Double baffle will take up a ton of space, unless he can put it on top of the front baffle he already has.
Either way, the double baffle will still take up quite some space, as you stated. I definitely think I will go with the threaded rod/dowels, one on each side of the Z. The box will be 3 cubes after displacement, so hopefully my 45s don't take up tooooooo much space.

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double baffle will be fine to support the weight of the sub. not really needed but if you want to so you feel better about the weight go fo it.
as for any bracing.
i would assume you are going to port it. theres your bracing right there. hell with adding anything else. its not going to be a huge box for a single 15" and with the port wall that will give more than enough support. anything more is just taking up space and you will need to make your enclosure larger.

pointless to do that when its not needed.
So your telling me a regular 3/4 MDF 3cubic ft box will be fine holding a 60lb+woofer?.....
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Old 09-09-2010, 04:32 PM
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why wouldn't you put the 2nd baffle on the outside?
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