Hello,
I started with a Sonos connect. I then bought a good DAC. I also bought the W4S reclocker which helped the Sonos a lot. I wish S1 Sonos could do HiRez because I own several pieces. I just bought a BlueSound Node 2i to get HiRez and replace the Sonos in my main system. If you do not have a HiRez player purchase a BlueSound product. If you do have a HiRez streamer, work to get the best DAC you can afford that matches your system. I believe now in today’s Audiophile world the DAC is the most important piece in your system if your main listening is digital. Plus it can save you a ton of money on cables due to you need a good interconnect from your DAC to preamp. After that you can use “good” cables that don’t cost a fortune. Like basic audio quest and still get incredibly results. Many cd/sacd/DVD players use the same Oppo transport/ disc drawer but what makes it sound so good is the internal/ external DAC. DACs have sound signatures so make sure you test,test,test. R2R does not sound like a chip. Also when you get a few more $k sell your existing DAC and upgrade to a better DAC like going up the Denifrips line because there is a big difference from Denifrips Ares to the Denefrips Terminator. Also, because they don’t last forever and they keep improving.