Is there any way of playing Amazon HD on an Allo USBridge? Asking for a friend…
Not through roon.
Shairport (Airplay) from an iOS/macOS device should work, using the official Amazon Music HD app.
But it will be limited to 16/44.1kHz.
Shairport (and official Airplay) are limited to 16/44.1.
To be precise, 24/48 is airplay maximum