I have become very fond of Roon, particularly of the way it approaches random play of Classical music. I started it with Schubert Trout Quintet on Friday, and it took me on quite an odyssey via the 'Radio' function, each time playing a complete work, whether a concerto, a symphony or even an opera. I am running Roon Core on a Mini PC (eggsnow fanless), pointing to my music on a Melco, and I have directed the Mini Pc sound output to one of the USB ports, to which I have connected a cheap USB DAC which has a digital output and which then feeds a digital input on the NDS (renamed 'Roon'!).
The sound quality, while excellent, is not as good as playing the same music from the Melco dedicated network connection to the NDS (using Nstream). My question is whether I can improve the result by replacing the USB DAC with something more sophisticated (dedicated power supply, etc.), and if so, what?
Your thread caught my eye as i've been down a similar road to you, albeit with a 272. Like you having discovered Roon and being frustrated with Naims lack of support, I looked for options.
1 - I connected my iMac (where the Roon Core resides) to the 272 with a very long (12m) Toslink cable. This worked fine but SQ wise, it wasn't on par with the 272.
2 - I borrowed a SONORE microRendu* (using the Roon Ready App) from a friend and a Chord 2Qute DAC from a dealer. Again not ideal as this option bypassed the 272 DAC rendering it a pre amp only. However, the SQ jump compared to using the 272 with files stored on a NAS, was eye opening to say the least.
3 - In the meantime the SONORE UPnP Bridge was released for the microRendu*. After some initial issues with the beta it worked perfectly with the 272 and sounded great. On par with files on a NAS but with all the benefits of Roon.
Note* In options 2 & 3 the SONORE Sonicorbiter SE could be used as a cheaper option, although I understand at the expense of SQ
Based on my experiences, the above are all viable ways to get Roon into a Naim streamer although I'm sure there are others. However, option 2 was my first exposure to a Chord DAC and despite trying I just couldn't go back to the 272 without the 2Qute, good though the 272 is. This ultimately led me to sadly move away from Naim and I now have the following set-up.
iMac (Roon Core) > SONORE microRendu (bridged ethernet port connection) + LPS-1 Ultracap LPS > Chord Hugo TT > ATC SCM40A.
I know Naim are talking about Roon coming to the new streamers, but they should seriously consider those with classic streamers as Roon is for me game changing.