@mapman, very interesting, Map! I have somewhat struggled a bit with doing this very thing as a wholesale change. I pretty well completed my "retirement" system a few years ago, and while I am not quite yet retired, the system is, and has, given me such pleasure.
Over the years I have accumulated a few extra pieces prior to that main system over-haul, and have kept the best pieces out of it all. One of these pieces is an all-in-one Naim Uniti1, the swiss-army knife of audio components that I have. It does pretty much everything, CD, Streamer, FM tuner, amp, preamp, DAC, in one fine box. And while it is over 10 years old, has done sterling service and I know what it is capable of, and still use it. Quite impressive even if it is "outdated" by todays standards. Yet I could live with it, as it can drive my Duevel Venus omni's quite well.
At times, the thought of ditching all my other gear, and buying an up-to-date one box wonder, gives me great pause. Yet in it, it seems almost a good thing too, as the last couple years of my life has come about much simplifying/downsizing, yet I still do not want to compromise the quality I have in my main system. Something that I may have to come to grips with in the next year or so possibly. Really, quite a few of these all-in-one pieces are quite good in reality, it is just maybe we don't always allow ourselves to move on from the audio-nerdery business thinking it can't be as good-or even better. Maybe it is though. Everyone's situation is different, and why one might go this route or not. The main thing is still being able to enjoy our music to the fullest, no matter what the hardware may be.
Enjoy the Cambridge, am glad you kept the Ohms, and that it appears to be working for you! I may too succumb to the dark side of downsizing/simplifying my setup soon.