Oh, and is it possible to edit a Post’s title? I’d like to fix that “DAV”!
Room Nucleus One USB port out to fiber converter to Ethernet DAV?
Does anybody know if I will be able to connect my DAC, which as currently configured, does not accept USB streaming, to the Nucleus One USB port using one of these::
“StarTech.com USB to Fiber Optic Converter - Open SFP - 1000BASE-SX/LX - Windows/Mac/Linux - USB 3.0 Ethernet Adapter”?
I have good SFPs and the appropriate Corning Fiber.
I ask because I’d like to get my DAC off my LAN switch. (The Nucleus and my esro 7 pro router, which is the gateway for WiFi in the home and several other Roon endpoints, are on that switch.)
If the USB to Fiber converter route works from the Nucleus’ point of view, i can run the fiber to a Fiber to Ethernet converter and then Ethernet cable into my DAC. But will there be a breakdown in communication between the DAC looking for Ethernet protocols and the Nucleus sending out via USB 3.0 protocols?(I’m hoping that is exactly what the StarTech USB to Fiber converter plus the SFP is designed to handle, but just looking for guidance from anyone who knows.
Thanks!
I’m very confused about what your DAC takes as input. If it’s older and has no USB input, or Ethernet input then you want to get a USB to S/PDIF adapter. In this case you want something more like this. The jitter is going to be at the mercy of the USB/S/PDIF clock though. You lose the asynchronous feature USB audio is famous for. So lets back up a bit. My suggestion for home network cleanliness is to keep power supplies away from your Hifi. Either using a filter with known excellent noise rejection (like any series mode surge protector) or after market power supplies with very low noise. While fiber can help, I find the addition of 2 Ethernet/Fiber converters causes as many problems as they solve. You now add 2 more noisy wall warts to your equation. If you have a streamer with a built in fiber jack (i.e. SFP) that’s great, but otherwise you are just as well off with the use of an Ethernet isolator that’s rated to UL 60 601. Honestly though a better solution overall might be to do a Raspberry Pi end point from Roon and use an S/PDIF daughter board. I believe that board has it’s own high quality clocks. Not 100% sure though. |
@erik_squires thanks my DAC is integrated into my NAD M33. It’s a pretty sophisticated DAC with the ESS 9028 Sabre DAC chip. I do not have the NAD module which would allow for a USB streaming connection. So the best hardwired connection is ethernet. That’s what I use currently. i’m pretty sure that the net effect of converting back to ethernet in the first place means I’m gonna lose the higher frequency and 32-bit depth that the USB port seems to offer, but I’m still interested to see if it’s any improvement in sound quality or reduction and noise over what I’m doing now, (which I must say seems to have a very low noise floor). thanks!
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You are much better off using the Ethernet and Roon. I'll be surprised if you can use the Nucleus USB port as, essentially, a USB network adapter port. It’s only there for music, and expects a USB music receiver. So, you could, as mentioned, use a USB to coax converter (though this is iffy due to hardware compatability issues.) and end up with S/PDIF, but that loses the asynchronous features. Using Roon over Ethernet allows the use of the M33’s asynchronous mode and internal buffer. Having said that, you can use an isolator or even do Ethernet/fiber/Ethernet conversion if you want to which maintains the asynch features. Asynch is important because it allows your DAC’s clock to be the single metronome used to reproduce music. |
As @erik_squires said - use M33 as roon end point. You don’t need to use nuckeus usb. Go to Settings, Audio and enable M33 as a device in roon |