I'm currently using an i9 MBP as my Roon Server/streaming source.
I spent a few days this summer ripping 600 CDs to Apple Lossless.
The Roon Server is also connected to Qobuz.
The laptop is connected through USB to my MCD85 2-channel SACD/CD Player from McIntosh.
- 8-channel, 32-bit PCM/DSD Quad Balanced DAC
- USB Audio input supports up to DSD256
- Coax and Optical digital inputs
The CD player is then connected using balanced cables to my MA352.
I listen through a pair of bookshelf Sonus Faber speakers with an additional sub.
I'm happy with the results, and the screen on the laptop is used for lyrics, etc. and the Roon Signal path is lossless.
For comparisons, I also have a Sonos Port connected to the MA253 through RCA and to the MCD85 using coax. I'm sticking with the USB input directly from the i9 MBP because I think I get the best signal path that way and for convenience.
I just need Amazon Alexa to control the Roon Server/Player so I can scream at Alexa to play any of my 7,500+ tracks or anything from Qobuz.
If the new Mac Mini comes out with the Apple TV form factor I might switch to that or maybe the Roon Nucleus One.
Either option, I don't think, matters until I put a pair of $10K+ speakers on the system.
On a final note, you can argue if I'm an Audiophile or not, which may or may not disqualify my answer! :)
https://store.roonlabs.com/products/nucleus-one/
https://www.mcintoshlabs.com/products/integrated-amplifiers/MA352