People in posts here on this thread and elsewhere have reported a significant, even a huge improvement, with the addition of a reclocker/isolator. Reducing noise will result in a blacker background and increased detail. Better coupling caps will also help detail (lower losses/greater transparency). Reducing jitter also helps as well.
Hardware: RPi Zero W | Allo Kali | ProtoDAC TDA1387 X8 | PGA2311 | Icepower 500ASP | Harbeth SHL5
Software: Moode 8.3.3
Source: Win 10 NAS
Software: Moode 8.3.3
Source: Win 10 NAS