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Old 9th November 2010, 01:06 AM   #11
Collo is offline Collo  Australia
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Quote:
Originally Posted by tb46 View Post
Just wondering, why: "...no longer recommended, the LR filter...",Nice work with all the VB6 calculators.
Thanks for the VB feedback..

After modelling both filters in winISD, I found that for my subwoofer needs, the extra complexity of the higher order filter was not needed. Just using a slightly higher design frequency gives enough excursion protection, with a very small amount of difference in output below that.

The filter linked to was developed with an eye to keeping it as simple as possible, whilst still providing protection and enough gain to do away with a cleanbox.
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Old 9th November 2010, 02:22 PM   #12
tb46 is offline tb46  United States
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Hi Collo,

Thanks for the additional information.

Regards,
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Old 6th January 2013, 06:38 PM   #13
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Default car subwoofer filter 48 db/octave

Hi could anyone please comment on the following circuit. Its an car subwoofer LP filter... tkx

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Old 6th January 2013, 08:13 PM   #14
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Default car subwoofer filter 48 db/octave

Hi could anyone please comment on the following circuit. Its an input filter for a car subwoofer.

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