I use these headphones for three years now and not a concern. This is my first headphone qualit.Par report those I used before, Sen me this "open ears" on the sound of qualit.Utilis in all circumstances I have always satisfies t its sound reproduction. Anyway, as nophyte your comments lead me to see if I wait to be loin.Mme book of my new HD485 I will keep my old 202 that made me know the world of sound quality SENNHEISER.