Cambridge 851C with Bluesound

Just starting to look into streaming and thinking of starting with a Bluesound Vault II. Obviously I’ll try it both ways using its own DAC and through my Cambridge 851C; guessing through the 851C it will sound better. I’ve never used my 851C as a DAC for another device but guessing it’ll do just fine. Question for other 851C owners, are you using a Bluesound device and what are your thoughts? Questions for others, is the Bluesound the device for the money or have newer units by others passed it up for the money if so what are your thoughts? I’m very happy with my 851C so not looking to buy a new DAC, but keep the Cambridge and add to it. Thanks