Do you hear distortion when playing the music?
To check it more clear turn on quiet the music preferably with emphisized cymbals and alphas and listen closer to the tweeter. Vary the volume safely to hear distortions go up or don't appear at all.
Also you can check the same with piano passages. Play some Revolutionary Ethude of Chopin. I have Vladimir Ashkenazi Ethudes on London records that is my reference piano recording.
To check it more clear turn on quiet the music preferably with emphisized cymbals and alphas and listen closer to the tweeter. Vary the volume safely to hear distortions go up or don't appear at all.
Also you can check the same with piano passages. Play some Revolutionary Ethude of Chopin. I have Vladimir Ashkenazi Ethudes on London records that is my reference piano recording.