mahgister
Here three examples:
https://www.youtube.com/watch?v=EQR2RJwoZ2Q *This is the original recording. Not a reproduction audio.
https://www.youtube.com/watch?v=qR33bL5aNTk&t=1225s *This is dubbed. There is no sound from speakers. This video sounds same with the original music. Die Dreigroschenoper: Ouvertüre
https://www.youtube.com/watch?v=lFjQ77ol2DI&t=1205s *This is the original recording. Not a reproduction audio.
Simply, every reproduction audio systems sound veiled, bright, and un-natural.
Even many original recordings have veils/brightness depends on quality of microphones and recording machines. The idea of mic is similar to loudspeakers. Few great sounding mics are made by people who had made mics all their life in 1930~60's and found some work routines for good sound. Still they didn't know what makes good sounds. They just knew some work routines. Alex/Wavetouch