Devialet 800 vs. 1000 Expert Pro

[Oliver]

Hi, everyone.

I am new to this forum, hope, this thread does not exist yet.

Does the upgrade from 800 to 1000 make sense? 
Is the DA converter really better and so is the power supply? How about the sound?

The upgrade costs EUR 4.900.

Thank you for your opinions.

Regards

Oliver