Depends on the amp and the tubes, but the ones I heard were colored on the darker and warmer side to help combat the HD 800s coloration of being bright and cold in attempt to make the headphone more neutral.
Edited by kman1211 - 3/4/14 at 3:00am
Honestly, I don't think it's the headband - it's the ball-and-socket joint on the cups that makes the noise. The original K701 used a shiny plastic that seemed slicker - maybe it was the chrome ring?
No as the sound signature is quite different. The K712 is on the darker and warmer side, the HD 800 is cold and bright. The K701 is more similar to the HD 800 than the K712, the HD 800 is still quite different than the K701 though. It's a bit holographic sounding, but not like how the HD 800 is.
In my opinion, it's a fairly poor comparison for the AKG. I would agree it hits above its weight, but the HD 800 is simply in another class.
I found the K812 above the K712 in sound quality and better than the HD 800 and T1.
First of all the K812 is the same price as the HD800. Second both can be driven well with an inexpensive amp like the O2 or O2 and ODAC Combo. If you are going to spend $1500 on a headphone go with the well known and well tested HD800.
Perhaps the K712 Pro can be viewed as a poor man's HD800, but they have quite a few key differences.