I bought a new Pi4 and 2 of your "DAC2 Pro XLR". I installed HifiBerryOS (20211105) and connected using Spotify - everything works but I only get sound in one channel.
Since I ordered 2 "DAC2 Pro XLR" I tried the second one and still the same problem. This is without touching any configuration.
What can I do about this? Is anything needed to be changed for this to work?