Devialet db flashing in red - what does it means?

[PeppaPig]

Clipping can damage speakers.

The amp shouldn't be clipping at a volume setting of -15 to -10 dB. If the amp is clipping at that volume setting then there's probably something wrong with it but I'd expect the protection circuitry to operate.

I think you need to raise the issue with Devialet.

Thanks David. I will monitor it for a while and see if it happens again. The speaker still sounds fine.