Compare SQ using different inputs

[ralphoi]

Does anyone know if there are any noticeable changes in SQ when
1.   Feeding phantom optical from computer
2.   Feeding phantom optical from dialog
3.   Feeding phantom via Ethernet from NAS (is this possible)??
4.   Feeding phantom via Wifi through Spark
5.   Feeding phantom via Bluetooth (Spotify, etc)

Which feed gives you the best SQ? Assuming using the Flac or 320kbs mp3.

Thanks!

[bearcatsandor]

Provided that the stream is constant (no dropouts with wifi), since it's all going through the same D/A there should be no difference in sound quality that you can hear. If you can, it's probably in your head.