Network Acoustics Eno Streaming System vs SGC Optical Isolation System

@jjss49 I didn’t go all in with linear power supplies for the FMC modules if that’s what you’re referring to. And for several reasons -

• I questioned the unbelievable clutter to improvement ratio of FMC
• FMC units, despite adding LPS will still be generating and injecting enough noise into the signal as part of the conversion process
• A very clean passive implementation of Eno streaming system that requires no power supply therefore introducing no noise of its own
• The level of improvement I got from Eno

You can build a mega component ethernet signal chain with each of the pieces removing some and adding some noise, complicating the troubleshooting process as well as adding potential suspects. We have enough variables with streaming to loose our marbles over.
My personal take on it - for me, less is more. If I’m investing money into fine tuning the streaming it will be to upgrade a DAC/streamer. In my mind that’s where the major improvements come in.

I am still using fiber/converters into a Bonn switch then eno into my server.  I have tried both fiber and Ethernet between by router and the Bonn switch and really cannot discern a difference as I don't have a noise issue.  However, the hardening issue is interesting so I will try going back to straight Ethernet and listen more.  Easy to do since both the fiber and Ethernet runs remain in-place.

I did move my larger linear power supply near my modem and router and use it to power both, with other smaller linear supplies near the other peripherals. 

“I don’t have a noise issue”
@mitch2

It will be interesting to hear your feedback once you remove everything in the path and go direct from your modem or router to your Innuos. I know this is A/B is bit of pain but this is the only way to re-evaluate what each of the devices in the signal path doing to enhance your listening.

Optical comes in number of flavors, hearing one or two implementations may not tell the whole story. I've had generic with smps, generic with one lps, generic with two lps, OpticalRendu with generic, OpticalRendu with OpticalModule. I've also used optical both pre and post server or streamer, optical with both switch plus router or router alone. Finally, tried various power cords and lps with the above.

I have Finisar industrial grade optical transceivers coming in Friday along with a custom build optical cable (lowered reflectivity) from AfterDark. These transceivers have lowered jitter vs all other transceivers. So I shall soon have the chance to hear most optimized optical I'm aware of sometime in coming week.

Also further experiments coming via upgraded ISP speed, 600mbps vs 300, already ordered. This along with even better Netgear router, with lower ping time and much better latency, meaning lower jitter than present Netgear. The new Netgear will also have all wifi turned off, assigned IP address to present Netgear which will then provide wifi for everything with exception of streaming chain and NAS. Wifi nasties, meaning RFI will then be segregated and much  further away from my audio system.

Only variable at a time with above so this will take a bit of time to evaluate.

A simpler solution, which doesn't add more noisy power supplies is this one.  Galvanically isolated and 4k V breakthrough voltage: