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Old 15th March 2005, 01:03 PM   #1
Baki is offline Baki  Malaysia
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Default Sounds boomy...

I've built a vented sub box for my 12" sub. But I've no idea why the sub is too boomy until the midrange and high frequency just like being covered.

Anyone have a solution? Size of the enclousure, port tuning or???

Thanks.
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Old 15th March 2005, 04:16 PM   #2
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generally, portrd enclosures are more boomy that sealed. Also, ythe box size can affect the "boominess" of a sub. What sub are you using? whats the box size? what amp?
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Old 15th March 2005, 05:04 PM   #3
Did it Himself
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Building a vented sub without Thiele-Small parameters generally does not result in a successful outcome. The drive unit is probably too high Qts and/or you have tuned it too high and/or the box is too small.
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Old 20th March 2005, 01:01 PM   #4
Baki is offline Baki  Malaysia
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The size of the enclousure is 24x18x12 (inches) with ported. the port size is 2"dia and 6"length. The amp that I use is stereo and briged.

I don't know the Qts and other parameter of the amp because it is a used amp I bought from my friend.

I've no idea to get the Fb of the sub.
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Old 20th March 2005, 05:21 PM   #5
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Qts and Fb are speaker parameters not amp parameters. You can measure them yourself.

http://www.diysubwoofers.org/measure.htm
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