I have configured my Asus Tinker Board as a Roon Endpoint.
The reason I bought both is to see if the Asus Tinker Board with external WiFi antenna would be a better choice for a wireless endpoint.
My first test was hooking it up to my Schiit Modi 2U / Magni 2U. Wow, this sounds like crap at the moment. You know the sound you get when a cell phone is close to speakers when a phone call comes in; that is a constant. So I figured, let me try it on my Leckerton real fast to see if I get the same. Nope, crystal clear music as I was expecting.
I tried 4 different USB cables to the Leckerton (including the PYST USB cable), and they all sound the same. Pretty crappy.
I am streaming Tidal 16/44.1 to the device is only using ~200k on the wireless and my Asus router is showing a ~50 Mbps wireless connection to the Asus Tinker Board at the moment, so I cannot believe it is a bandwidth issue. I also used WiFi analyzer and I am on a clear channel (no other carriers under or near it). Also, it works fine with the Leckerton.
update I tried hardwired ethernet and I have the exact same problem. I have read around that the Pi 3 had simular problems with the ALSA buffer and they made a change in /etc/modprobe.d/alsa-base.conf (snd-usb-audio nrpacks=1). Unfortunately for me, the Tinker Board does not have a file in that directory.
Maybe I need a better shielded USB cable for the Modi 2U.
Any suggestions are appreciated.