D200 volume issue

[Jean-Marie]

I had this problem once:
https://devialetchat.com/showthread.php?tid=1124 
Are there any error codes?

I ended sending the amp back to Devialet, where they replaced one of the boards (can't remember which one).

Hope you get it sorted without too much trouble.

I think Axel's answer is worth checking.

if the Class D part of the amp has failed, then only the A part of the amplifier would work alone and that could explain it.

One test you could do, since the A amplifier is 6W if I remember correctly is to see if you start hearing some degradation past -15dB which would correspond to 6W on you D200.

Jean-Marie