Digital isolation between Ethernet hub and streamer

@fastfreight  He has 2 next level switches with the EE 8 and the Q-base. 

@audphile1  Not what I said but okay. Could same the same about your system slick. Considering you used $200.00 worth of switch gear. 

Snake oil

not biting.  enjoy midfi

Don't most good servers/streamers also provide some form of isolation?

@mitch2  - Galvanic isolation is required for Ethernet signals, but due to how capacitors may be used across the coils isolation could be improved on a bit.

Personally I'm more worried about surges from outside the home coming in and frying all my HT equipment which is cable connected to it so I like to put isolators which are rated to UL 60601 at the end of long cables, close to my HT switch to reduce those chances.  I don't know of any boutique/audio isolators however which have this rating. 

@erik_squires - I agree about surge protection.  Unfortunately, outside of a Belkin unit in my server/IT room, and my Isoclean Power A60 that filters all of my front end stuff in my system room, I don't really use it.

When I mentioned isolation for purposes of this discussion, I was talking about as provided by all the small boxes that are available to purchase.  Since running optical from my server room directly into my Sonore Sig Rendu SE Deluxe, none of the other stuff has done a thing for me.  I do use an optical break (2 converters and two LPSs) directly out of my router, and then after the server, I use Sonore's opticalModule to convert the Ethernet output into a fiber optic output that goes into my system room and into the Sig Rendu SE...