I’m not sure why they don’t list it on their specs, but if you read the manual, you’ll see that both the BLU MkII CD player, and the M Scaler connect to Dave via Dual AES (BNC - based on AES3-2009 specs).
And Dave definitely works with dCS Network Bridge with Dual AES, I know for a fact because I owned that configuration for a year . See this post: