The sound quality here on this release is probably the worst out of the original releases of the SoR soundtracks. The sound is muffled and sounds very muddy, like it was taken from a worn down cassette tape.
This was my first though upon playing five seconds of Streets of Rage 3 eleven years after its summer 1994 release. The gameplay was lacking, the "story" was a mess, the character pallets had been messed with, and the "music" was an absolute, utter abomination. This was a series that redefined video game music and continues to be highly regarded to this day. So what went wrong with Streets of Rage 3? Why does the music sound so...broken?
My guess is that Yuzo Koshiro just tried to be too experimental and instead of approaching this entry with a techno/funk sound and a splash of calypso he went full on industrial/jungle/abstract. It just doesn't work. It's an unlistenable MESS of a soundtrack and a miserable, pitiful end for a series that was born into sonic nobility.
Don't go into this thinking that the infectious funk and familiar melodies of Streets of Rage and Streets of Rage 2 are going to delight your eardrums. This is a soundtrack that will make them bleed. This is noise that will make you wish you were deaf.