When I upgraded from the, btw 8ohm only, Arcam AVR 600 rated at 110w to the Arcam AVR 850 rated 120w8ohm/200w in 4 ohm the sound from the onboard DAC is quite adequate even compared to my Stax running on the Stax SRD-M50 headset amplifier, meaning I prefer the Arcam. Just for those unfamiliar...