I have just made painful contact with a major point of the Darko article mentioned by @Ermos a few posts up. I streamed a CD Samplerate recording to my Rossini via USB and didn’t notice that the Midi Settings of the MacBook Air were on 48kHz. Just garbled Audio - until I switched to 44.1. Now it sounds ok.
Given you have to switch Samplerates manually, one would think Apple would indicate the album’s samplerate very visibly somewhere. Either I am blind or they don’t…
Am I missing something here or do I really have to try different samplerates until I find one that plays cleanly?