It is probably the best headphone ever developed. It cost 1/5 the price of a Stax Omega 7 and can stand toe to toe with it all day long in sound quality. The first time I put on a set of Stax omega 7, I thought mankind had finally achieved the epitome in headphone development. But sure enough, a small company out of Brooklyn New York by the name of Grado Labs proved the world wrong. The first time I put on and listened to a set of Grado RS1 headphones, I thought I had finally gone to heaven. It was better than being in the land of milk of honey. The sound and tonal quality of the music is just completely indescribable. If left this listener completely speechless. The clarity and resonating warm tones from these mystical cans truly cater to the palate of ones ears. Talk about being at a live concert. It is like having the concert come to you at home when you put a set of RS1s on.