2. amps-preamps
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Hegel hum?

Spent a week or two enjoying my new H400 and noticed a faint hum between the time I turn it on and before I play music. Also there when I pause after playing a while. Note that the hum is only apparent when I bring my ear a foot away from the amp. I’m quite pleased otherwise but am wondering if this is normal?

baconboy

Showing 2 responses by ghdprentice

ghdprentice
7,537 posts
 

In fifty years of owning high end audio equipment I have never heard a hum coming from any of my components. 

ghdprentice
7,537 posts
 

If you put your ear a foot from the speakers it is common to hear a faint hiss. But not a hum. This could be a faint ground loop. This would be that the amp is on a different circuit from the rest or one piece of equipment and there is a slight potential. 

 

To test. Plug everything into a single circuit and see if it remains. 

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