I have tried this amazing amplifier with DAC at home with PC/Jriver Input: Sound quality is magnificent; however, the stability of the DAC when interacting with PC is trouble some. The DAC is not really in sync with the computer after power recycling, it will be disappeared from PC totally when turning Diablo 300 off but will be hard to re-handshake with PC again. Another issue is when playing high res music format and down to low res like MP3...the DAC locks the frequency and does not change accordingly, it will intermittently stop then full stop after about half of track (1.5 min) time. Very frustrated! Hope a firmware update can fix.
