I'm planning on setting up a streaming device based on Topping E30 dac.
Is there any difference feeding it with regular RPi 4 usb or some clean usb outputs like Allo USBridge sig ?
I have a RPi4 connected via USB to the E30. Works flawless. Even DSD content. I downloaded a streaming software called Moode (which you burn directly to SD card). The music itself comes from a NFS linux server, from a Windows workstation (via DLNA) or from internet radio stations.
BTW, it also works with a RPi Zero. I didn't test the DSD files however, but for flac, mp3 and internet stuff even that is enough.