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


I recently received a few DSD albums and would love to play these.

In the manual of the T+A MP 3100 HV, I read
"The MP 3100 HV can be used as a high-quality D/A converter for other devices such as computers, streamer, digital  radios etc. which are fitted with poor-quality converters or no converter at all. The MP 3100 HV features two optical and two electrical S/P-DIF digital inputs on the back panel to allow this usage.

A USB-DAC input on the back panel permits to use the MP 3100 HV as D/A
converter for computers.

At the USB DAC IN input the MP 3100 HV accepts digital PCM-encoded stereo
signals with sampling rates of 44.1 to 384 kHz (32-bit) and DSD data with
sampling rates of DSD64, DSD128, DSD256* and DSD512*."

To use the T+A MP 3100 HV to play DSD files, I have to connect it to a PC using a USB cable? Is my understanding correct?

I have all my music on a NAS in the basement. I use Roon to play (flac) files on my stereo. Is there no other way to get DSD to play?

Ideally, I would prefer to add a device in my network to play DSD. 

This "USB DAC" truly puzzles me. 

Thank you for your advice.


I ripped all of my SACDs and stored as .dsf files on my hard drive and they are recognized and play via Roon as DSD.  Works like a charm.

the thread below (and buying a cheap pioneer player)  is was got the ball rolling for me several years ago.

best of luck 


Thank you for your reactions

@lordmelton : a DSD album on a usb stick, not SACD

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

@jazzman7 : They are on my NAS, but Roon transforms it into PCM and downsamples it. No purpose in DSD128 or DSD256 files if they're downsampled.

@bhoage : When you follow the signal path, is Roon downsampling? I have the *.dsf files, but it's brought to my speakers as PCM and downsampled. Thanks for sharing that link!


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. 






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.