An hour before work is - have thrown their impressions briefly between Thx00 and TH900
We begin c of headphones that completely different price categories and that in general, that's fine.
As allowed TH900 clear winner, it was expected, compared on Luxman P-1, while connecting two pairs of headphones.
At the same exposed TH900 volume play a little louder. Level when it begins to be felt almost physically membrane begins to work about the same. I have this sensation occurred after the volume knob approached about an hour. (Sometimes around 11 hours)
Well, then TH900 lighter headphones with an emphasis on high frequencies. THx00 noticeably darker, and bass work more accented - physically felt
There may not even affect the full warm-up ... I have worked for 40 hours, they can hardly more. At low frequencies the start were more. Here THx00 probably more comparable with the DX1000. So the impression is that from any point 0, these headphones apart in different directions in the lineup. At TH900 in my opinion it is not very high frequencies dominate, quite comfortable for me, but compared to THx00 already felt a little lack of bass. In Thx00 lack of high frequencies in general, that is not felt, and the bass in my opinion there is a small surplus.
The only time when the treble seemed to me a lot on the TH900 was the song "Songbird" Surganova and orchestra. (Remember the classics, and I do not listen hard, almost) in the beginning.
For general impressions advantage that in general it is natural to have TH900. DAC and amplifier are connected via Ortofon 8Nx (Cu), silver connection with advantage also think for TH900 left shifted toward THx00,
Slowly getting used to supply material Fostex headphones, but sympathy and remain (jazz, vocals, etc.) on the side of AT despite all Fostex quality.
data lay out their arguments in the two branches on the TH900 and Massdrop.
All of the above only applies to my personal perception.