«  Exellent! »

In comparison with my HD448 Senneheiser, already very good headphone is distinguished by its high heat, which seems so cold and stiff that Senneheiser. the level of detail is also slightly higher, every nuance or texture is faithfully recreated. Contrary to what you may read in many opinions, the bass is lacking, then it's a question of taste ....
Another strong point of these headphones is very high spatial sounds very valuable to a symphony for example.