OCXO oscillator input theme

[RGB]

Even if this is another thread about SQ with different inputs, I will narrow it down quite a bit here and focus on the oscillator in use.
 
Background: An (XO) Ether Regen is on its way. Now there is the server/player that’s the missing fix in my setup. I will need a new server and am totally open if the server should contain a player as well, or if I should stick to the CI Roon player. I could think of building the server(player) or buy a commercial product. One switch, one multirail LPSU, one server(+player) is the “box count limit” on the streamer side of things.

Back to OCXO oscillators:
S/PDIF out in a Server + Streamer controls the audio clock into the DAC. That will make it possible to let OCXO devices such as Aurender N10 or Pink Faun SPDIF bridge PCIe own the audio clock. But this will not happen with the Expert Pros, right? Is it not so that the Expert Pros inputs, including S/PDIF, will change/process the signal and the OCXO oscillator precision will be lost?   Put it in another way. What is the benefit of OCXO oscillator precision in a device into an Expert Pro?
 
No one knows the oscillators in use in Expert Pros right?
 
Now ethernet:
If building a server I would like to use the OCXO 5Volt dual port PCIe JCAT NET Card XE. Ether Regen B-side - NET Card XE – Expert Pro. Again, how to make the most out of that high precision JCAT oscillator in a server in a Expert Pro setup?
For example, the RAAT protocol states that the DAC controls the clocking, right?

I hope that OCXO oscillators still are utilized in a good way? If so, what to think of implementing them in our Expert Pro systems?

Best regards

Best regards