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Post by musicman1806 on Sept 4, 2014 19:11:31 GMT
First, I'm not sure where to put this thread. I am planning on building a subwoofer and will just hook it up to my amp that currently feeds two old magnepan speakers which I just finished repairing. For the sub, I will need to buy or build a variable low pass filter for frequencies of around 200Hz and below. As far as I know, this would at least include an inductor but I don't know how to make it variable to adjust the cutoff frequency.
Does anyone know where to find a simple device like this or how to build one? I'm fine with soldering and just need it in the signal path of the sub. Any help is appreciated.
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