Thank you all for invaluable input. Btw, I use a similar testing procedure as djones51. In my case it's the girlfriend who has fabulous ears but could care less about what's behind the sound. Her input is amazing.
I am the original poster. Thank you all for your input. I did wind up with the Vault 2i and am really happy with my choice. Yes, ripping all those CDs is a bit of a pain, but I just leave a pile next to the Vault and whenever I pass by, I insert one. Also very surprised to hear that several of you find the sound to be better than Sonos. Nice bonus for me.
Once again, thank you all. My best wishes for a super 2019.
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