Cambridge Azur 851C Upsampling DAC, CD Player & Preamplifier

I also have a vintage receiver Pioneer sx-1280. With B&W 805s in one room. And running off the same receiver a pair of B&W 805 D3’s  in another room. The receiver has been completely re capped.  For a turntable I have a Yamaha YP-D71. Also run a pioneer RT-707 reel to reel deck. I still record some of my favorite radio shows. Also added a pretty low end Sony CD player that I ran through a music hall 25.3 via optical output. Also used my Mac to stream tidal.  This was supposed to be my vintage system , That has a high WAF factor. But with the computer and the music hall Dac, it was just to messy . And I wasn’t completely happy with the Dac.
 I wanted to add a better DAC and clean up the whole thing.

I bought the Cambridge audio 851n network streamer with built in Dac. The 851n is a great digital hub. 5 digital inputs. Plus it streams tidal and Spotify. has a built in preamp.  And can be controlled by the iPad app. I did get to hear it at a local dealer showroom before I bought it. And was really impressed by its sound and it’s connectivity as a digital hub. Have had this unit for Just about 7 months and really like it. 

I just bought Cambridge CXC transport (to replace the Sony) which does not have its own digital to analog converter in it. It just a transport. Can’t tell you how impressed I am with this combination.  Super quiet and much more detail. 

My Cd player of the last six years has been the Cambridge 851-C. I love this piece. It's one of those components that I don't plan to ever get rid of. The only way I would is if it broke beyond repair. Yes, there is better digital out there now, but for a player that sells for $1650 new, it definitely brings a lot to the table and has incredible flexibility. Not one hiccup in the six years I have owned it. It just seems to be bullet proof.

biketony & mre_m... thank you.

I agree with biketony, my digital situation is a mess and could sound better as well.  I'm working too many digital inputs w/ compromised sound:  Apple Music streaming via iPhone, from my Mac via WiFi to Airport Express plugged into the Marantz receiver, streaming radio stations via the Mac or iPhone.  I also have a large CD collection that sits idly because of an ailing NAD player from 20 years ago.

So, if I were to go with a Cambridge Audio CD/DAC/Digital Hub unit, like the 851-C... that hub would translate, optimize and interpolate the original signals from these sources up to a hi fidelity level.  I would then feed the product of the DAC's into the amplifier side of the Marantz (it has user accessible 'pre out' to 'amp in' jumpers. I would split the 'amp in' side and feed the 851-C's product into the amplifier for final delivery to the speakers.)  Do I have this right??
All in all, I would want an input for the iPhone, a router (currently an Airport Express) to deliver sound from the Mac in the other room, possibly a hard drive or SSD full of music files, and a TV.  

Could the 851-C provide for these inputs... ?  as well as providing a CD transport?  Or would a CXN v2 with Apple Airplay be better and add a Cambridge transport to that?