Anyone heard the Neodio NR 1200Yes, I have. It offers a very detailed sound -- i.e. high frequencies are stable and strong. Vs the Dart, I felt it was more precise, perhaps even, a bit drier.
Another outstanding integrated is the Vitus Signature ~25W/channel amp. I preferred that to the Gryphon -- albeit, the Gryphon is more powerful & thereby more versatile.