I know this is an old post but I thought I'd reply anyways in the hope it might help someone else. I have a rpi 3B with a hifiberry dac+. I couldn't even get it to boot. Spent too much time trying to figure out the problem. I finally swapped out my 'official' RPi power supply (2.1 Amp) for a 3 Amp. Things finally started to work and now I'm updating my rather large library. I've used RPis since the first version came out and always found that when they acted wonky the solution was a larger power supply.
With the newer tablets, iPads, phones getting more power hungry, it's easy to find a 3Amp or larger power supply. Just pair it with a high quality cable.