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Mcintosh 250 Transformer Hum Normal

Hi,
I had not noticed till today as it was very quiet here, I notice a slight hun from the unit, Nothing from the speakers.

Again I do not recall it but I had never had it on in a very quiet room and you have to be very very close (like right next to it) it could be that i just have very good hearing in that frequency range ;-)

If this is not normal what could cause it? The unit does not run warm and sounds great.
escorial

Showing 1 response by erik_squires

erik_squires
5,268 posts
 
It very well could be.

Worth checking if it's responding to DC on the line. Turn off everything else in the home, via breakers, and see if it goes away. :)

Even if it is DC, it's not harmful, and the only negative effects are your level of annoyance.

Best,
E
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