I am using stock cable and find it just fine. Though, it's fair to clearly state that I am not a cable believer. Later on, when I have a chance to try out other cables, my belief might change. The treble stays the same IME within the last couple years. Before that, I am not sure. Before i bought mine, I use a friend's HD800 for about 2, 3 weeks. His is a little older. When I got mine, I thought mine was not as bright as his. Sonido thought the same thing about his HD800. Then, I got the friend's HD800 back to compare directly. The 2 were identical. :)
Bias affects your hearing so much just like other placebo effects. I personally find that between HE500 and HD800, my preferences are fully covered for all music genres to which I listen.
I am a happy man as far as HPs.
Glad to hear. I was totally not planning to buy headphones anytime soon (even though I have been glued to the HE-560 threads). After getting my main monitors, I was planning to save up for smaller desktop monitors. The HD800 is really, really making it hard. BTW this was in loud meet conditions, so I wonder how it will sound in a quiet room. Probably gonna pick up a used down the road. Not shelling out $1600 for retail (unless Colorware). I remember seeing used ones go for $1000 a year ago. Is is still around that much?
This has the potential to actually be end game HPs for me. I never felt that with either of the 3 planars.