loud cracking and rumbling

[ogs]

I have noticed that with SAM enabled I hear the cracking and rumbling if I move the volume of my 250 in the + range. It is quite easy to hear when no music is playing.
I never play music this loud and I only hear it when I move the volume control, not when it sits in a given position.

I wonder if other users hear the same. This is clearly a bug, but as I have not seen others reporting it until now I assumed it was my 250 misbehaving. If many have the same problem we should report it to Devialet.