That's easy: There is no such thing as absolute accuracy. At the very least, there will be aberrations from a microphone and the recording system that will separate the live music from the reproduced music. Then each playback system will add its own abberations. Two different speakers have different aberrations but they are aberrations nevertheless. Nothing is perfect.
If you seek some sort of absolute, you will always be frustrated and never be happy. Just find what you think is "accurate" relative to youself and your budget, forget all the rest, and enjoy the music.
Arthur
If you seek some sort of absolute, you will always be frustrated and never be happy. Just find what you think is "accurate" relative to youself and your budget, forget all the rest, and enjoy the music.
Arthur