I have Sony HAP-Z1ES but don’t use it as a server, just as a hard disk player with USB connection to an external DAC. Only one internal 2.5" SATA HDD/SSD can fit and there’s only 1 USB port. It does support USB hub (USB CD player, external hard disk, and external DAC) but I don’t know if using hub will degrade the USB output to external DAC. The user interface has good ergonomics (the big dial) and nice color screen - you can navigate and perform setup without using phone app. Ripping using Z1ES with connection to Gracenote gives more correct album artwork and song titles compared to Windows PC ripping, but it’s slow if ripping with verification is selected. One of Z1ES strengths is its ability to play gapless for all formats, including DSD.
Since you have thousands of CDs, I suggest you estimate the amount of HDD space required and tracks count since there’s an upper limit on how many tracks can be supported by Z1ES (never published officially, something like 20,000 tracks).
Since you have thousands of CDs, I suggest you estimate the amount of HDD space required and tracks count since there’s an upper limit on how many tracks can be supported by Z1ES (never published officially, something like 20,000 tracks).