My rig is Mac Pro - JRiver21 - toslink - Gumby - Wywires blue - Bryston BHA-1 - Wywires red - HD800 or LCD-X. Most of my music is 16/44.1 ALAC, also some 24/96 ALAC and FLAC. I don't use any equalization in the music path. JRiver is set to upsample to 96 kHz.
I listen to all music genres except pop and rap. Current pop music is mixed too brightly for my ears. That's where the LCD-X (or probably the HD800S) would sound better. However, for all other genres, including rock, blues, jazz, acoustic, metal and classical, I prefer the sound of the HD800. I like the sound of neutral HP's. The HD800 won't satisfy needs for bass slam, so when I'm in that mood I put on the LCD-X
.
The biggest SQ improvement in my rig was the upgrade of the Gungnir from the DS to MB technology. That removed the harshness from the HD800, added bass, and made the mids just sing like angels. Also, the BHA-1 is a very smooth / powerful SS amp. The GMB and BHA-1 work very well together.
Hope this helps -
RCB