D200 + Headphone Amp

[Axel]

I’m not sure that it will solve your problem, but with any luck, it might. 

Well unfortunately it didn't solve the problem.

I now have the preout always on but changing source still results in the preout being muted until I toggle speaker mute off/on.

I've opened a ticket with Devialet support to see if they can help.

That’s strange. Maybe a bug in the config file? Hopefully Devialet will sort it out for you.