Using Mac Mini as streamer plus music server

[midi]

@midi
After using a Mac Mini I have bought an INNUOS Zenith, which I am still using. For the moment (once again) with ROON (trial licence) as a Roon Core. Very comfortable and without problems (but DSD files are not really possible with the Zenith as a core). I have used the Zenith before as an UPnP server, also without problems, but there is no software for that with a real good UI (the best one is MConnect m.o.). The Zenith is connected via USB to the Devialet. I think there are less other devices on the market with this possibilities.
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How did it improve on sound? Is it possible to play direct via Ethernet (play) output? was your mac standard or tweaked?
The Melco seems to sound a lot better via Ethernet than usb (review hifi-advice) albeit not on a devialet system.

The Zenith plays direct as ROON endpoint via USB to the Devialet or as Core via Devialet Air ETH. I prefer the USB connection, for me a little more relaxing sound. INNUOS recommends USB too.