I am using Ropieee as an ethernet/usb transport for my Aqua DAC. No hats, just the Raspberry (Model 3B+).
I do not use oversampling, so most of the music is 16bit/44.1KHz. Connection is ethernet (no WiFi).
There is occassionaly a pooping/ticking sound. I tried two PSU, the original one and a Linear PSU (with 25W). Actually it is worst with the linear PSU but the problem is there with both of them.
If I connect my MacBook direct to the DAC, then everything is OK.
Is it a known problem?