AMP-1 and buzz in the loudspeakers

[Jaime]

One of my friends bought a Audio Zone AMP-1 and its sound is excellent.
But there is small buzz in the loudspeakers.
All the Gain Card and the Gainclones have that buzz? This is possible?

 

[Nuuk]

All the Gain Card and the Gainclones have that buzz? This is possible?

No, if properly built, the Gainclones are prefectly silent!

 

[carlosfm]

One of my friends bought a Audio Zone AMP-1 and its sound is excellent.
But there is small buzz in the loudspeakers.
All the Gain Card and the Gainclones have that buzz? This is possible?

No, if properly built, the Gainclones are prefectly silent!

It is not likely to be bad construction or internal grounding layout.
At least I don't think so, otherwise Peter would have all his clients complaining.

¡Hola Jaime!
Pruebalo sin conexión a la tierra.

 

[Nuuk]

It is not likely to be bad construction or internal grounding layout.

I wasn't implying anything, just that there shouldn't be any noises!

 

[carlosfm]

I wasn't implying anything, just that there shouldn't be any noises!

Yes, must be an earthing issue, as you can see on my (spanish) post.