Today I wanted to setup my new HifiBerry Amp 4 Pro in combination with two older B&W speakers.
Installation of HifiBerryOS on a Raspberry pi 4 worked without any issues - including Wifi setup. I can connect my iPhone via Bluetooth, or Airplay and even the album cover will be shown. Everything looks nice so far except of one thing:
there is no sound at all!
What could possibly be wrong here?