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Old 10-14-2009, 02:22 AM
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Default Clamshell?

So a guy on RoE posted asking about clamshell designs and how they worked. This piqued my interest as I've always wondered how the heck they work.

Anyone have any idea as to the theory behind them? I haven't the slightest idea how to even start designing them, much less model them.
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Old 10-14-2009, 02:27 AM
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Try this read
Very interesting theory...
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Old 10-14-2009, 02:35 AM
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meh. that's not very informative, but an interesting read. look here http://www.the12volt.com/caraudio/boxes.asp for some good info
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Old 10-14-2009, 02:38 AM
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clamshells arn't isobaric 99% of the time
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Old 10-14-2009, 02:41 AM
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Quote:
Originally Posted by SCHMITTY View Post
So a guy on RoE posted asking about clamshell designs and how they worked. This piqued my interest as I've always wondered how the heck they work.

Anyone have any idea as to the theory behind them? I haven't the slightest idea how to even start designing them, much less model them.
most of the time they act like a tapped horn IF the port is in the middle of the 2 sides
sealed clamshells act as sealed boxes with cancellation,but most of the time the added subs you can fit out weigh the cancellation they produce
like most boxes you can get a decent starting point with a model but really only way to make it perfect is to test and tune it
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Old 10-14-2009, 02:46 AM
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So are clamshells a type of isobaric configuration? I had always thought that they acted as a traditional sealed/ported/whatever box but by having the V-shaped baffle, that it changed the acoustics. I guess that's what I'm asking, how does the size/shape of the baffle as well as the position of drivers on it affect the overall response?
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Old 10-14-2009, 02:47 AM
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Heh, got about 5 responses in the time it took me to write that, that was directed at C3's first response.
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Old 10-14-2009, 02:49 AM
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they can be but most of the time the 2 baffles are not close enough to really act as one
I have looked into them a little bit but never really found any pros other than fitting more drivers
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