Which combination of components (Streamer, DAC, Preamp, Amp, etc.) are most future-proof?

Hi all,

I’m in the process of gently upgrading my older, mid-fi system. I’ve started with speakers (Salk WOW1’s, REL 328 sub). I recognize that the amplification, cables, room, and source all need investment.

I’m focusing first on source(s) and how to serve them up. While I have a decent CD collection, mostly I’ve been streaming my music from ripped MP3 files and Spotify. I no longer have a working CD player. I know that higher resolution sources (lossless files or high quality streaming) is important. Re-ripping my collection may become a project.

So, here’s my question — a lot of reading has shown me a dizzying range of ways to go. Music servers/streamers, DAC, preamp, amp are available in many combinations. I’d like quality but am not inclined to spend tens of thousands of dollars; I resist going the "separates" route for *every* piece. So which combinations make the most sense? A streamer/DAC? A preamp/DAC? An integrated amp/DAC? Something else?

In addition to resisting separates, I’d like to invest in good components which won’t quickly be outdated. So, for example, if DAC’s are likely to evolve quickly, then I’d like my integrated amp to not be weighed down by a DAC which would too quickly become a vestigial organ inside it.

To reiterate the question: What combination components would best help out with some portion of the sequence of serving--converting--amplifying--digital sources materials while avoiding too-rapid obsolescence?

Thanks for entertaining the question. Again, I’ve read a lot, but it’s not made my path clear. (Or maybe I just get a PS Sprout and call it a day?)

Dave