chilehed Thanks for your input on this. I do have the ENO filter connected from ethernet line to Zenith. I have it direct-connected to a LAN wall slot fed from router in different room,no network switch, just direct connected. Like you found the Phoenix USB unnecessary, I will probably find the Iris DDC no longer needed as the cleaned up signal has gone through the ENO filter, the music server and the all the clock checking inside the Lampi. I'll try the Iris just for fun.
anzaanimalclinic Did you find a genuine sound difference / major improvement between the ENO filter and the SOtM dCBL-CAT7u? It's a pretty serious layout to switch the former for the latter...