Try other streaming services if possible. I notice that in spotify the sound is shifted to mid-bass frequencies. Also try to listen with normalization. I previously also listened without normalization and the sound went into mid-bass. When I turned on normalization, it became less pronounced and mid-high frequencies appeared. I can also say try to listen through spotify web, it uses aac codec in the ogg application.

What sound settings do you use in spotify? Is normalization on or off? Is the quality set to very high? Auto adjust quality on or off?

Bright is what you mean? Lots of high frequencies? How do you output sound to headphones using dac?