I honestly doubt the D2 would better your onyx/ambre combo.
Different yes
Better ? in the ears of the beholder.
I have an Aurender N100 and tbh I have just changed to using Roon, running core on my computer and using a Sonore Microrendu as a bridge then straight into my MHDT Orchid DAC and that sounds slightly better to my ears. A little more air and easier to pick out instruments, not quite as dark as the N100.
In fact I was considering buying an Onyx/Ambre combo using i2s to see what that sounds like.
The N100 does allow the use of Spotify but the sq on that is blown away by Qobuz hires imho