Sennheiser should be ashamed of these headphones, most of their headphones can go head to head with grado's per price range...the reviewers are correct about the bass you have to manipulate the eq to get good response, which is sad because Sennheiser headphones should reproduce sound accurately enough that you don't have manipulate low frequencies as much as is required with these. The highs and mids are very good with these and the soundstage is pretty solid. Try the pmx60's, though, they are excellent!