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crwdns2933797:0Chris Müllercrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Chris Müller
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| + | [* black] My system emitted a very loud 50 Hz AC hum which made it impossible to hear music |
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| + | [* black] It is caused by ground loops which occur if the receiver and the speakers have different ground levels |
| + | [* black] To equalize the ground levels at the back of the receiver is a screw to apply a ground cable. Fix a cable there |
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