@ap1 :
If there is not USB and you have to use AES/SPDIF/TOSLINK, then to deliver bits perfectly from streamer to DAC you need to choose DAC that has master clock OUTPUT and streamer with master clock INPUT. This is the only solution (other than USB) to make streamer slave to DAC clock.
Very interesting. Maybe I got this wrong, but you are saying:
1) If using USB from streamer to DAC, they are synced in terms of clocking, as the clock in the DAC is used
2) If using AES/EBU or S/PIDF or Toslink, then the clock on streamer is used, and no sync exists between the streamer and DAC
Is this correct?
For #2, what you are proposing as a solution is practically impossible (or hard at best). It would require the DAC to have a 10 MHz master reference clock output and the streamer to have a master clock input. Or both of them having a master clock input and using a third, external 10 MHZ Master Clock generator device