30 days ago I added the ENO silver filter **by itself** for about a week before adding an EE 8switch and Supra Cat 8 Ethernet cable between the switch and ENO. Note: I have no ethernet wall plates so I was able to use ENO Ag without an ethernet patch-cord. Cat 6 runs from my router/modem directly into my Zenith thru a small hole in the sheetrock of my music room. So I inserted cat 6 into ENO and ENO pigtail into Zentih. The result was disappointing.
The filter did provide a discernible improvement in SQ after a few days of settling in or cooking—if you will. But, the gain was too small, in my view. I will never know if an ethernet cable along with the filter would have provided a larger bump. But I can say that after adding the EE switch and Supra Cat 8 and allowing those to settle in a few days or perhaps even longer, I have been mightily impressed. Speaking with others about their experiences with ENO filters, switches and ethernet cables, it’s clear results vary.
I did remove everything once to do an A/B and it was better with than without.
But, I recommend evaluating it over a month or so. Thru different moods, lots of different music, some days away from your system, etc. As I’ve done so, the benefits of these products in network have become more apparent and they continue to surprise me. Outstanding results.