is the signal from a Metallica song,different from the signal from a classical song?
No of course not, the same signal passes from the source all the way to the speakers, but my thinking is that the emphasis may be different for classical music than Metallica. For example for metal is important to have fast transients, leading edges of electronic instruments to be well reproduced, as well as fast paced and deep bass, while for classical reproduction of the accuracy of the acoustic instruments and super low noise are one the important factors. What do you think?