I am very happy with my Yamaha 5000 SE headphone. As I have two headphone lines, the second one for my Blue Ray Dolby Atmos chain (see blog), I was occasionally convinced by a good friend trying a Focal Utopia 2022.
it needs break in time but then … oh my god, What a great instrument!
AudioCirc.com 
have you tried the fostex headphones. I think they’re great
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You mean the TH-919? Not yet, will try.
It does not come with a serial cable!?
I am using Fostex attenuators for my loudspeaker system, Bavarian Voice 8X.
Best
E.
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