Hey,
I got them from ebay, ProAudioStar seller for $409. Open box unused.
I received the headphones earlier tonight, seems as good as new to me.
I am confused .. I don't have much of an experience with upper mid fi/hi fi headphones.
Very open and very spacious and bright with impressive soundstage to be honest.
But oh man, ZZZZZZZZZZ SSSSSSSS TSTSTSTSTS.. this is what I am hearing right now.
After 15 minutes of listening, my ears are fatigued. I just feel that the sound waves/air is being pushed against my ear drums with force.
Maybe, the T90 tend to give the impression of having more details, but to my ears, it's just colored by boosting the treble and emphasizing high frequency notes.
Comfort is very good, but I prefer the Sennheisers in that regard.
I will be listening to them for some time before I come to a final conclusion.
I was torn between the HiFiMan HE-500 and these for some time .. but decided to wait for the HE-400i as it might offer some improvements over the HE-400 in the comfort department, and maybe in the sound as well fro $499.99.