Anybody gone from ethernet to optical for connection to a streamer?

Yes, it made a worthwhile improvement in my steaming setup. In my case I place optical between server and Usb renderer (Sotm sms 200 neo, powered by Uptone Js-2 lps). Use two TP Link MC200CM, both powered with LPS for the conversion.

Optical conversion galvanically isolates from ground noise on ethernet. Result, blacker background, higher resolution thing.

I've found optimizing streaming is complex undertaking, steaming setup much more complex than my analog. I used Audiophilesyle forums as my guide for setup, steaming now preferable to my pretty nice analog setup for sound quality.

I agree ethernet cables make difference. Thread got me to wondering where optimum optical placement would be. I'm using just prior to USB renderer based on idea last segment of ethernet chain would provide greatest benefit. On the other hand, if converter placed just after modem, in other words first link in chain, may provide greatest benefit. The idea is any junk riding coax into modem, modem itself and first ethernet cable out of modem would be galvanically isolated, benefiting server. Problem then is EMI/RFI in house can enter after first link.  And then I could go further, keep present optical conversion, add the second optical setup prior to server. And then, we could only be so lucky to have fiber optical service from cable company. Even at this, ethernet cable within your house would be susceptible to EMI/RFI.
Ultimate setup, fiber feed all the way from cable company through entire ethernet and digital audio equipment throughout house having available fiber connections direct to optimized optical connection on dac.


Yes, I continue to say optimizing streaming solutions is the most complex undertaking I've yet encountered in audio. My experience is every single minute link in chain makes a qualitative difference. Relatively high degrees of improvement are available at every link in chain, and fast evolving innovations mean highest quality streaming never a stable situation.

Junia
Only way you're going to know is by trying, the great thing about streaming is the wide variety of equipment and constant innovation.