The Sony SA5000 and ATH-AD2000 are not, imo, in the same class as the HD650 AKG K701 and DT-880.
They are OK, but the sound is just not as natural as the other three. The ATH-AD2000 has too much highs, a weak bass - the presentation is just "off". The Sony does have a lot of detail, but it also has a metallic cavernous sound which to my ears is just unbearable - I was very disappointed.
Both of these heaphones are way overpriced, considering you can get a new AKG K701 for less than 300$, or even an an HD600 for 250$...
I rate SA5000 on par with 880, above 650 and AD2000 and way above K701.