Apologies for the stupid question, but recently I have gotten a spotify subscription, hoping to notice some improvement in the songs I listen to.

From what I’ve read, most people should be able to tell 128 to 320/Lossless, and 96k and below is obvious.
But what I noticed was… nothing.

The songs i listened to sounded incredibly similar, if not the same to the free spotify quality (which was 160kbps)
I doubt it’s my equipment (LCD X + JDS Atom Amp), so I would have to assume all thats left are my ears. Should I be worried?

Thanks in advance!