I have a thrupple in my digital marriage . My Bryston DAC3 cohabitates with my Melco N 100 via usb and Cambridge Audio CXN 100 over SPDIF.
The Melco , which is also my NAS, sounds great and I would probably give it a slight edge over the CA. There is fantastic separation of instruments, soundstage depth and delineation.
I added the CA for features. Chromecast, AirPlay, podcasts, internet radio. The CA also sounds excellent and many times I use it over the Melco because I might be switching between Chromecast and files on the NAS and it’s just easier than changing the DAC input.
Lately I’ve been wondering if the slight preference for the Melco renderer is because every thing is contained within the Melco. When I listen to a file from the Melco NAS over the CA it has to connect by Ethernet. At any rate I could easily live with either streamer exclusively by as Joel Grey says in Cabaret “..there’s two for one.”