I used vinyl from the mid 1970s until 1984, fairly swiftly abandoned vinyl for CD and I don’t think I played another record after buying a really nice Marantz CD player in 1990. I had one further change of CD player in 1999 until abandoning CD in 2010, so for me the entire life cycle of CD was 26 years, and it was mature after 6 years. The earliest CD players had jitter issues, which was solved fairly quickly.I think if you grew around CD playback, you might as an audiophile feel that it takes 25-30 years for the technology to mature.
I messed around with various linear power supplies on switches etc from 2010 to 2015, and then basically went to the configuration shown at post 5 above with everything connected to a switch and then fibre-optic to the stereo. I remember this specifically because I read an article in 2015 and bought a Cisco 2960 on eBay for about $60.A very recent TAS review used this same description. I don't experience this at home, but I have found it true that streaming takes extra care to eliminate what may be multiple sources of noise. Since these don't seem to be measurable yet (John Swenson has stated measuring would require a hefty investment in equipment and time), we experiment to find the right blend of "solutions." Given all networks are different, the specifics of the solutions are different and can range from adding an LPS to a router, to multiple active and passive filtering devices. It is rather confusing.
But, when noise reduction reaches a certain point, streaming is very musical. Since digital, vinyl and tape all have different distortion profiles (there must be better terminology), they will not and cannot sound the same. But, presumably, significantly reducing the noise and other issues inherent in each format will yield a musical presentation. Preferences for a particular distortion profile continue for each listener, thus What's Best differs.
I did a house rebuild and rewire in 2021 and there is a lot of home automation, but still basically have one central switch and everything plugged into it, all powered from a battery universal power supply, which costs about $150. The Ubiquiti managed switch is about $350.The two audio components (a music server and my streamer) are on a dedicated VLAN. I have to use a FMC because my streamer does not have a SFP socket, but the FMC is powered by a 9v battery supply. So the noise reduction is basically 100% because the connection from the main switch and the streamer is fibre with no AC connection at all.
I stick with Innuos because they have extremely good power supplies, have an ethos of very low noise processing, have an excellent USB module and a more recent development is their superb Sense application.
Getting noise levels low or non-existent really does help digital audio and using a DAC with one of the lowest measuring noise floors also helps. What helps the entire audio system is a completely new electricity installation, I have three 100A supplies coming into the house and one is completely dedicated to the audio. I had to do this installation because of the building work and the existing wiring was unsafe. The audiophile elements were about $500 of mains cable and a Furutech wall plate that I’ve had for about 15 years.
I have no IT skills, I took this approach based on simple advice online 10 years ago, it works and it doesn’t cost much money.