Hi Neil,
Congrats with your new Bartók!
I think I have to correct Pete.
In case you do not have an external word clock, the sync settings should be set according to the selected digital input.
For a Blu-ray player, connected through SPDIF, this should be AUDIO. Bartók will remember this setting for you.
For USB and ethernet digital input, this should be MASTER.
The above is according to the Bartók’s manual (page 40):
