Three ways in. One standard. A disc, a file, a stream. Three paths into the same system, and the same requirement at the end of each one.
The disc is read whole, at its own pace, with nothing added. The file is taken exactly as it was encoded, from DSD to high resolution PCM. The network brings the music in over Ethernet or Wi‑Fi, with the signal kept clean all the way to the converter.
What matters is not how the signal comes in. It is what remains of the music once it is inside.
How does music reach your system?