Electrocompaniet 100DMB power Amp

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jjbmon

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Joined 2007
Switched off having worked silently,next session has developed 50hz mains hum on both channels. Tried disconnecting all sources still apparent thru speakers .Not technical but seems to indicate an earthing problem with the amp. No turntable, all signal wires away from power leads and supplied from power conditioner block.HELP !! PLEASE
 
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