Have to disagree soix. I did just that using my phone as a streamer into an Ares II. It sounded almost as good as using a Node to stream in the same setup. Never tried the Zen but can't imagine things changing that much. But maybe they could.
@marco1 I started using an Apple Camera Adapter into my DAC and was happy. Then, because the Apple CA looked like crap I tried this, which was a huge upgrade in sound quality over the Apple crap cable…
Then I got an iFi Zen Stream that was a huge upgrade over the LavriCable. Get a good streamer and you’ll be greatly rewarded. That’s my experience anyway.