Devialet Expert isn't good in showing secondary harmonics?

[GuillaumeB]

I took this to refer to reproducing the "timbre" or "colour" of instruments via all their natural harmonics. It is generally assumed that digital equipment often fails to convey it, and can sound 'grey' by comparison. It's one of those things you might not miss until you hear it done properly. After hearing Dan D'Agnostino tube amps at Hi-Fi shows, one can begin to see the point...

I know what you mean, the trouble is some insist that this is a colouration. BTW I understand D'Agostino are solid state. Still your point is an interesting one. 

Funnily enough I believe the Original d'Atelier is a major step forward in this regard. Well I'm obviously biased but the one thing I notice with the O d'A are improved tonal colours. There is something "different" about the sound and I hope that they are eventually able to trickle this down to the rest of the range. 

Guillaume