The same way you know what other audio components might sound good, by doing homework, auditioning and comparing the options.
I play FLAc files via 2 different Squeezebox touch units that I played .WAV prior. I also play them via PLEX application on Amazon fire box using toslink out to DAC. I am very happy with the results with both.
I play FLAc files via 2 different Squeezebox touch units that I played .WAV prior. I also play them via PLEX application on Amazon fire box using toslink out to DAC. I am very happy with the results with both.