Roon is a great app. I switched from Logitech Media Server (LMS) a few months ago and haven't looked back.
If you plan to use Roon DSP, you will need a fairly robust computer or device to run Roon core. DSP use is not mandatory. I think it makes for a much better listening experience and does improve SQ. I use Headroom Management, Sample Rate Conversion, and the Parametric EQ filter. I also use volume leveling. I'm still learning how to use DSP, but overall, I'm quite satisfied with my results.
My source is an Innuos Zenith MKII network media server/CD ripper. Roon core runs on a sonicTransporter for Roon DSP. If you are looking for an excellent media server/CD ripper, take a look at Innous products. The Zenith line is relatively pricey, the Zen line is far less expensive with basically the same functional capabilities as a Zenith.
- With an Innous product, you will need an external DAC
- Innous products can decode/render MQA files
- Innous products are Roon ready and can run Roon core (My older MKII runs Roon core, but isn't powerful enough to run Roon core with DSP. The newer MK3 version can.)
I have a NAD M12 pre/dac with BluOS module (that I installed). I used the BluOS module with LMS. Since switching to Roon, I don't use the BluOS module and I've purchased a Mytek Liberty DAC. If you plan to use Roon, I wouldn't base my streamer decision on whether it has MQA or not. Just let Roon handle it. I would not have purchased the M12 BluOS module if I'd starting using Roon before buying the M12.
Roon handles MQA unfolding and, because I use Roon DSP, the Liberty feeds the M12 a PCM stream. I done a few BluOS MQA versus Roon MQA comparisons. At the same volume setting, BluOS MQA is brighter and louder than Roon MQA. I attribute that to my use of Roon DSP Headroom Management
and Parametric EQ filter. Both sound great, I like the Roon MQA sound better.
Lastly, if at all possible, use Ethernet cable to your endpoints. I use WiFi in my secondary system (Verizon FIOS Quantum Gateway router with Orbi RBR50 WAP and satellite). The WiFi signal blankets my house, but I still get an occasional dropout. My main system is all Ethernet, with no network connectivity issues!