Right dCS product for my rest of the system

[PAR (Pete Rogers)]

@sourav

Uniti Core behaves as upnp server too.

Yes I am aware of this . However I referred you to the FAQs for a reason. In particular I hoped you would see this one:

[Mosaic FAQ] Why is MinimServer the only UPnP server software that is fully supported by dCS?

In our years of testing with different UPnP server software dCS has found that very few available offerings behave in a consistent and predictable manner. In order to provide the best possible user experience Mosaic was engineered with MinimServer in mind as it has proven to be one of the most stable, predictable and feature-rich servers available. We are confident that Mosaic will function correctly with MinimServer but cannot say the same about other available UPnP servers.

Which is why I remarked that I do not know what UPnP server software Naim use or if it can be substituted. Not using MinimServer can produce odd results in Mosaic. Of course using Roon instead sidesteps this issue although some features are only available with Mosaic.

Uniticore S/Pdif output? The best sound quality from Rossini means serving your files to it via ethernet and UPnP. Using Rossini as just a DAC with the Naim processing the files to provide an S/Pdif output ( presumably using the Naim app for control?) does not strike me as the best way to use a Rossini.