How to get DSD working in a networked (Roon) setup?

koenvingerhoets

Very often DSD files are played using DOP (DSD over PCM).

Might it be possible for you to provide a screen print of the Roon signal path for your DSD file. 

Out of curiosity I viewed the MP 3100 HV specifications and user manual.  I now realize that it's a combination CD/SACD disc player and DAC, but that only the USB input is DSD capable.  I also viewed your very impressive rig.  So it seems that what you really need is a DSD capable Roon ready (or at least Roon tested) USB network bridge, and that for the moment you are utilizing a PC in that role. 

@koenvingerhoets 

The MP doesn't see DSD (*.dsf) files, so I can't plug in and play. That's exactly the issue.

Have you tried the front and back USB sockets with files in WAV or FLAC?

If they don't work format a USB drive in FAT not exFAT or NTFS. Also there maybe a restriction on the size of USB drive, so use a small one.

If you can play files in FLAC and WAV try a DSD 64 file and see if that works.

Your machine should definitely play native DSD.

Thanks for getting back to me.

@jazzman7 : It's afaik what happens - Roon downsamples as I'm now relying on a network infrastructure rather than a USB connection with a PC. I'll take a screenshot this evening. 

Indeed - only through the "USB DAC" DSD files can be played. Furthermore, depending on the USB receiver used, there might be a limitation on the quality as well. 

I really new to DSD. But indeed - having done more research and with the answers received I started to look for a PS Audio DirectStream with Bridge II (new model of the DS is out so sharp prices second hand) or a Lumin Mini U2. Over time, I hope to migrate to the T+A PSD 3100 HV (it's delayed) as it will also support DSD256 over LAN. We'll see :) 
Your summary thus seems correct: DSD capable, Roon capable, USB bridge. Would you happen to know such a device?

@lordmelton : the unit plays flac without an issue. I have the same album in flac/DSD to compare, the flac was visible, the DSD simply wasn't. It only plays native DSD through the "USB DAC", and then it functions like a sound card. So yes - it does native, but only through the USB DAC receiver.

@koenvingerhoets  There must be an issue with the way you've downloaded the file onto the USB stick. I assume you downloaded it from a DSD website.

It could be that your file tags are in a different order that unit cannot read.

However you are correct, you have a SACD player so it cannot output DSD beyond the unit due to SACD licensing.

koenvingerhoets

In my system I have a Bricasti M5 functioning as a network bridge and Roon endpoint.  I am very happy with it and can highly recommend it.  Via spdif or AES/EBU can handle DSD 64 as DoP.  Via USB can handle DSD 64 or 128 as DoP.   Ethernet connection, no wi-fi accept via USB wi-fi adapter, which of course would tie up the USB port.