Strange Electrical Issue

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Stereosane

Where Music & Emotions Meet
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Wondering if anyone has experienced this or might be a able to dignose this problem.

When I activate my alarm it wakes my sub out of sleep mode and makes a buzzing switching sound through the Sub then it's gone, so it's obviously the alarm activating. My question is why is it sending a signal to my sub, I can also hear it through my hifi speakers if they are on. Bad earthing maybe?

Is this an easy fix and is it bad for my sub?
 
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