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Old 21st April 2013, 11:00 AM   #1
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Default Subwoofer filter/ EQ help

Someone gave me a Hifi subwoofer box with its 12" woofer. Brand unknown, amplifier and filter/Phase circuitry fried.
I managed to build Rod Elliot's P3A. Works great!! I now need to build a circuit that has filter adjustment, phase switch, etc.
The box is ported. Thinking of keeping it ported, as the driver has 3rd harmonic when i feed it with 20Hz.
Any ideas on a nice circuit to build for this diy sub??
Thanx in advance.
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Old 21st April 2013, 11:12 AM   #2
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by diy didi View Post
Someone gave me a Hifi subwoofer box with its 12" woofer. Brand unknown, amplifier and filter/Phase circuitry fried.
I managed to build Rod Elliot's P3A. Works great!! I now need to build a circuit that has filter adjustment, phase switch, etc.
The box is ported. Thinking of keeping it ported, as the driver has 3rd harmonic when i feed it with 20Hz.
Any ideas on a nice circuit to build for this diy sub??
Thanx in advance.
Hi didi,

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