At least you ask questions...
Most people dont ask any and they hate those who ask some...Beware.. 😊
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Audio measurements are useful to couple the gear with other components in a synergetic compatible way... Only narrow mind with no concrete training in acoustic could think that quantitative electrical measurements will indicate what they will hear as not only "qualities" of an audio system but "qualities" of the musical acoustic experience ...
The software engineering of files is not acoustic...
The recorded acoustic of a piece of live music is made of trade-off that will be TRANSLATED in your room by other acoustical trade-off of your own making... The audio gear CONVEY the signals more or less transparently thats all...
Acoustic matter more to understand audio and his link to musical experience than the electrical design of the gear...