Why do I need a switch?

@mitch2 

Okay, So, I’ll have to use the Powerline adapter and have the boxed between it and the streamer. Knowing i have thirty day to return everything, I’m going to give it a try.  Heck, I can even plug the warts into the power conditioner.

Thanks @jeffstrick for the answer.  Seeing as this is only a test, I just ordered a couple of the Ethernet to fiber boxes from Amazon and we’ll see what happens. If I hear anything I’ll get better power supplies and if I hear nothing, they’ll go back and I’ve shelved adding a switch for now.  I do have a cheap five channel switch somewhere, but it can stay in the cabinet for now.

I agree @jjss49 

besides putting in the Ethernet to fiber, I’ve also been thinking about getting the Denifrips Iris DDC, but unlike the Ethernet to fiber boxes, the Iris isn’t going to be returnable, so it’s much farther down the list.

Seeing as this is only a test, I just ordered a couple of the Ethernet to fiber boxes from Amazon and we’ll see what happens. If I hear anything I’ll get better power supplies and if I hear nothing, they’ll go back and I’ve shelved adding a switch for now. I do have a cheap five channel switch somewhere, but it can stay in the cabinet for now.

to do this assessment correctly you should have a well filtered or linear power supply on the ’clean’ side (receiving end) fiber media converter... otherwise, the noisy power supply there puts the electrical hash right back in ... before the dac gets the bitstream, thus defeating the purpose...

So been doing some reading on credible EE related websites, and I found this interesting tidbit:

While Ethernet is DC blocked by a transformer there is also a 1000-2000pF capacitor around the transformer to reduce common mode emmissions.

I wonder if these Ethernet isolators, like iFi or Tripp Lite or Everstar keep that cap in place?

Look at Figure 2, specifically at C2 and C3.