Just try out twisters eq for a minute. If you are playing music while you do it it will seem like a slight veil over the treble (voices especially), that you didn't even know was there, is slowly lifting. Like twister reports, the slight eq takes it to a whole new level, like you got a $500 upgrade in iems. I might be exaggerating a smidge as I am so happy with it, but I bet I am not that much!
Hmmm...I tried it out, and it didn't quite blow my mind like I expected it. Maybe I have funny ears. I even tried listening to some EDM stuff since that's what twister is into. I'll try out the EQ for a little bit longer.