Hi,
This is very nice, but very specific device with close development and left very little space for third party apps unfortunately.
NAD C 658:
Info
https://nadelectronics.com/product/c-65 ... aming-dac/
Manual
https://nadelectronics.com/wp-content/u ... OM_v06.pdf
That said here is what I think. You have three options based on Device description:
1. You can try MediaMonkey AirPlay output
https://www.mediamonkey.com/addons/brow ... ay-output/ to see if it will recognize NAD
2. From What I see NAD supports BT receiver Mode, so it is possible to use PC with BT dongle (v5.0 if supported by NAD, Which is prefered due the better quality of an Audio BT stream) and then connect to NAD which should allow MM to allocate NAD as output Device over BT Stream. NOT: There we some hit and misses, which highly depends on BT dongle and its features to register and allocate use of BT Audio as Windows Playback Sound Device
3. SMB/SAMBA/CIFS is Windows Network Share protocol that allow you to share folder on your PC to other devices on Network which means you can Share you Main Music folder over the network and then access it using NAD BlueOS app or with remote. This needs basic fundamental knowledge of LAN (Local Area Network)/WLAN (Wireless Local Area Network) and in case of Windows 10 few more settings needs to be done depending on SMB protocol supported by NAD (Windows removed some components, that needs to be re enabled) so also some Windows Administration/Setup Knowledge
4. Buying NAS device like QNAP/Synology with at least 2xHDD Slots (I prefer QNAP, but either would work for your needs and even more), where you will store all your music that you can manage with MediaMonkey over SMB share and organize them in desired Path/Filename.
5. Re purpose one PC to be Network Share (SMB) Server and only serve files controlled and Managed by MM on Main PC thru SMB in order that NAD can Access it.
Conclusion:
1. Works then it will be the fastest solution as it is mature plugin along with multiple user confirmations over the years that it works.
2. BT Dongles Are cheap, but poorly documented and it is Hit and Miss on each device (price do not influence features much as I have seen 3 USD devices work same as 25 USD ones). Also it is common that BT connection is unstable in some environments.
3. Cheapest of all as you already have hardware, but i would recommend Wired Connection due the fact that WiFi bandwidth can be tricky and not enough for Hi Res files (especially if you use that PC for other stuff. Downside is that You may need to find someone to set it up, which can introduce additional costs.
4. Most safest way as NAS do not take much power and Setup wizards are straight forward, some basic knowledge is needed but usually it comes to carefully reading on screen instructions. Downside is that it is costly as usually you need to buy NAS (200+USD), 2xHDDs (Same model and brand, NAS drives are nor cheap and I would not go below 6TB ATM) to set as mirror backup jut in case, I would also buy UPS to connect to NAS to have stable power for NAS due the fact it is powered 24/7.
5. Cheaper option to 4. (if you use some of our older PCS)but please note that desktop PCs are not designed to be powered 365/24/7 and Mirror backup is not always supported by all motherboards.
Suggestions:
I would try 1. then 3. and lastly 2. before you even think about 4. or 5. as they are more long term solution that come at cost (even I think they are worth the money every cent. With 4. solution as best overall due the nature of NAS Design and features that are more future proof)
I hope I have not risen too much confusion and answered few questions.
Lastly it is sad that 1.5k+ device do not support many of now standard protocols like DLNA (most likely due the price cuts which I find .... on their side) and open device to more broad user base, but from I read in manual it is designed as simple plug and play which can't replace more advanced features they simply ignored.