This is another common-place fact which is often misleading in audio and which is used in dac marketing ...😊
Another sad fact: "Garbage in/garbage out." Garbage in an accoustically treated environment is still garbage.
What is the source?
It is not the dac nor the turntable as this "garbage in garbage out" sentence may suggest ...😊
Why ?
This sentence dont come from acoustics... It comes from the computer industry...
In audio then in acoustics, the source is the set of acoustics trade-off choices makes by the recording engineer, which your gear will convey in analog digital reproduction, these choices must be TRANSLATED through your system in the room for your ears... There is not a mere digital transport and reproduction here but a translation of acoustics information from an acoustic environment through another one using all gear pieces as a conveyor toward the speakers/room/ears ...
Then " garbage in garbage out" is not a so useful expression for describing the right or not so right acoustics translation from the live recording Hall into you room ...😁
Dac and turntable matter yes, for sure, but way less than the room/ears parameters controlled or not controlled ...
Anyway as demonstrated by Edgar Choueiri all stereo system are defective and must be corrected to give a TOP experience... This is an acoustics fact too ...
Acoustics science rule audio not software engineering ...