You will need a Media Server as the Dialog is not one. Dialog (or a single Phantom - Solo) works as UPnP renderers. If you have a NAS for your music storage it is likely that you have a DLNA/UPnP server on it. Other vice you'll have to install one. There is a server in JRiver and many say MinimServer is good. The Remote access/Remote Control is the app that lets you select and play. It 'sits between' server and renderer. Spark is not a Remote Control. Bubble UPnP is one example of Remote Control..
I agree Devialet has not done a good job describing UPnP, and Dialog should have a built-in server and see music on a USB disk directly attached, but it doesn't. Western Digital My Cloud has a built in DLNA server which might be an alternative in your setting. Please note that UPnP/DLNA is not a very strict standard. You can easily experience that some things don't work.
I agree Devialet has not done a good job describing UPnP, and Dialog should have a built-in server and see music on a USB disk directly attached, but it doesn't. Western Digital My Cloud has a built in DLNA server which might be an alternative in your setting. Please note that UPnP/DLNA is not a very strict standard. You can easily experience that some things don't work.
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Devialetless!
Roon, ROCK/Audiolense XO/Music on NAS/EtherRegen/RoPieee/USPCB/ISORegen/USPCB/Sound Devices USBPre2/Tannoy GOLD 8
250 Pro CI, MicroRendu(1.4), Mutec MC-3+USB
Devialetless!
Roon, ROCK/Audiolense XO/Music on NAS/EtherRegen/RoPieee/USPCB/ISORegen/USPCB/Sound Devices USBPre2/Tannoy GOLD 8
250 Pro CI, MicroRendu(1.4), Mutec MC-3+USB