I respectfully and strongly disagree with the broad statement that DSP applied makes music sound like crap. Broad and adamant statements are a disservice to the audio community. DSP is applied everywhere there is digital, from recording to mastering to playback. Unless you listen to analog masters through an all analog system DSP has been applied. An all analog audio chain has analog manipulation and an audio chain that has digital has DSP. Analog signal processing is not without sin either especially if over used.
+1
Certainly a passive cross-over, not least the more complex ones, is a sonic bottleneck many if not most don’t realize the severity of.