Not the only time mconnect's weirdness has been discussed here, what you're seeing is mconnect resampling and futzing with the audio data as it's sent to upmpdcli. BubbleUPnP on the other hand has been totally reliable for me.
About getting the best out of your DAC, you might actually be better off with USB to the Aries II instead of using the Digione for SPDIF.
Not only is SPDIF more prone to jitter but the Aries supports formats upto 24/1536KHz PCM and DSD1024 which is only possible with USB, SPDIF maxes out at 24/192 PCM and DSD64 DoP.
Hope that helps
About getting the best out of your DAC, you might actually be better off with USB to the Aries II instead of using the Digione for SPDIF.
Not only is SPDIF more prone to jitter but the Aries supports formats upto 24/1536KHz PCM and DSD1024 which is only possible with USB, SPDIF maxes out at 24/192 PCM and DSD64 DoP.
Hope that helps
