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Old 02-08-2015, 10:22 AM  
dyna mo
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is the hum coming from the speaker or the amplifier? if it's coming from the amp it could be the transformer beginning to crap out.

is the cord 2 prong or 3 prong? could be a grounding issue starting here

how close is the sub to your electronics? could be an interference issue

that's all i got!
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