I made that transition about 18 months ago.
I decided on an Autonomic Controls MMS-5A "Mirage" music server, which has a 1tb internal hard drive, a decent iPad app to control it, an app that runs on my Windows10 laptop to sync from my iTunes library, the laptop is where I have iTunes configured to capture CDs in 44.1/16 bit AIFF files, with a 4tb external hard drive for the iTunes content. The MMS-5A also connects to my streaming services (Tidal, Spotify & Tunein), and has an app to back up its hard drive "automagically" to my Google Drive account. I have an external DAC, so I have no experience with the one built into the music server, I suspect it's not the best quality. I use the coax output from the server to the DAC (I use the USB output from my Windows10 laptop to the DAC as well).
Autonomic's support staff are really good.
I decided on an Autonomic Controls MMS-5A "Mirage" music server, which has a 1tb internal hard drive, a decent iPad app to control it, an app that runs on my Windows10 laptop to sync from my iTunes library, the laptop is where I have iTunes configured to capture CDs in 44.1/16 bit AIFF files, with a 4tb external hard drive for the iTunes content. The MMS-5A also connects to my streaming services (Tidal, Spotify & Tunein), and has an app to back up its hard drive "automagically" to my Google Drive account. I have an external DAC, so I have no experience with the one built into the music server, I suspect it's not the best quality. I use the coax output from the server to the DAC (I use the USB output from my Windows10 laptop to the DAC as well).
Autonomic's support staff are really good.