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Post by Casethecorvetteman on Apr 11, 2016 21:05:37 GMT -5
Hi all Ive got two DB Dynamics subwoofers that both hum. They do this with or without inputs connected, and its not the woofer humming, its the toroidal coil transformer vibrating. There s 2x 6,800uF 63v capacitors straight after the rectifier, i was going to swap those out for larger 15,000uF caps but the spares i have are only 50v so i wouldnt go with that.
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nashou
Unmoderated Off Topic
Tech in Training.....
Posts: 1,239
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Post by nashou on Apr 13, 2016 15:43:14 GMT -5
I'd make sure the rest of the circuit can handle the increase in current rush those larger caps might provide.
Nashou
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Post by Casethecorvetteman on Apr 14, 2016 1:26:46 GMT -5
Yeah i dont know if it can or not, the humming is not heard during a movie or music, only hear it when there is nothing else turned on.
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