i totally agree with the point that decent stereo systems is superior to headphone no matter what the headphone might be, recently i sold one of my expensive headphone to help fund my new stereo system which is a diy kit my friend is currently building it for me, can't wait for it to be done and give it a listen in my room, anyway i like the HD 660s tho i currently have the 6xx which i adore for its relaxing sound signature