Roon can’t see my Pre-Box S2 DAC after I installed Wiim Pro

Roon Software Discussion
1

Previous setup was Windows PC connected to Core using Ethernet and outputting to Project Pre-Box S2 Digital using USB. Roon Audio Zone showed the S2 as the device and everything worked fine.

Got tired of having to deal with Windows and decided to replace the PC with Wiim Pro, outputting digitally through coax to the S2 (Wiim Pro does not have USB out).

It works, but now the Roon Audio Zone shows the Wiim Pro, which is weird, since all I want it to do is deliver the bit stream to the S2, not decode.

3

USB is a two way communication between device and DAC, spdif is not it’s a dumb single way transport. What you are seeing is perfectly normal. Roon cannot know what is connected after the Wiim as it doesn’t know either. You send to the Wiim not the DAC. It then passes it to the DAC, your signal path in Roon ends at the Wiim due to what I described above.

3 Likes
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Okay, I said coax, not spidf, but I assume your explanation applies to that as well. Thank you.

5

spdif is coax or optical its the transport not the connector and yes it applies to both.

6

So how does the DAC know what to do? Since the Wiim has a DAC is that what Roon is “instructing”? Seems like I should just get rid of the Pre-Box.

7

All it needs to do is switch sample rates which any dac can do from any input. Coax supports up to 192/24 if the DAC support it. If it doesnt support 192/24 then you would have to change the rates it does suport in Roon by klimiting the rates sent to the Wiim. The Wiim is the digital transport here. Having it connected to the windows machine before was doing nothing different its just using a different connector. The DAC in the Wiim is pretty low grade I would stick to the Project Pre Box if I was you

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