For anyone that is interested I will explain how I implemented the recommendation from John Swenson. My baseline requirements are ROON Core software and a USB capable DAC.
My streaming chain is actually very simple. It is just 2 pieces. I used to have only 1 piece, the OpticalRendu, before I read Swenson’s recommendation to add a media converter in front of the OpticalRendu and I found that improved things a tiny bit more.
My super simple streaming requires the following basics that everyone using ROON will have:
- a cheap computer to run ROON Core. Most use a $$ dedicated music server here but I do not since I use fibre optical downstream. My cheap computer is hidden somewhere in the house. It automatically starts up at 8AM and shuts down at 2:30AM to force me to stop listening to music and go to sleep.
- a network switch with a fibre optical output
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Given the baseline setup listed above, connect a fibre optical cable from the network switch to the OpticalRendu and then connect the OpticalRendu to your USB capable DAC. Done. this is excellent quality streaming.
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I went a little fancier and added a media converter in-between the Network Switch and the OpticalRendu. So, I have now use 2 pieces of gear to stream. Which is still a lot simpler than most people.
In this setup I do not use the fibre optical output of the network switch. I use Ethernet output from the network switch to the media converter and then fibre optical from that to the OpticalRendu. Then USB to the DAC. Not very complicated and an improvement over the single optical conversion.
Remember fibre optical cannot carry analog noise (computer, Ethernet, switching power supplies on the computer network, et al), though Swenson’s comments state that some other ’bad thing’ can get by the optical cable (and into the DAC). That is why he recommends the media converter before the OpticalRendu.
BTW - I have 3 listening stations in 3 rooms in different floors of the house. I use some variation of what I described above with some other processes, but that is not relevant in the simple discussion of how to stream to a single DAC.