Yamaha AS-500 hum

Highway 8

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Nov 6, 2010
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Hello,

I'm happy with my AS-500 amp, but noticed it has a slight hum when the power is on (from the amp unit, not the speakers). My assumption is the transformer is buzzing a little, but is this normal for this type of amp? Just wondering. Thanks!
 

roger06

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Dec 23, 2007
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I get really obsessed about hums from time to time. My Naim amp hums and it gets to me – especially as I have a dedicated ring main. However, the manual states it can happen and that it doesn't affect sound quality.

Humming from the speakers – now that's a whole new level of annoyance...
 

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