Maybe someone here can help me. As described in my signature, I use JRiver Media to play FLAC files. My DAC is an HRT Streamer+ (the predecessor to the MS II+) fed into a vintage Kenwood preamp. The Kenwood has a very good phone stage, so it's not surprising that vinyl sounds superior to digital playback (at least in my system). But the difference is vast. I've had CD players produce better sound than what I'm currently hearing. Perhaps I've missed something? Digital files are FLAC 16-bit/44.1 khz. My preamp was recapped a few years ago, so I doubt the problem is in the line stage. Maybe I haven't calibrated playback settings correctly in JRiver, or I need a different DAC. Any ideas? TL/DR: digital file playback sounds less than ideal. Not sure where the problem/weak link is.