I currently have the Philips X2 and Denon D5000 and have a few questions regarding how the Fostex TH-X00.
I like a warmer sound, with smooth vocals and a boosted sub bass.
I find the X2 to be one of my favorite headphones. There is a bit of "hardness" at 3-5khz in the X2 that bothers me at times.
The D5k have an addictive sub-bass, the treble is too hot for me, the mids too recessed.
I listen to a lot vocal trance (Lots of female vocals, bass).
This leads me to...