That's one of my favourite aspects of the hd700. For me, it has a wonderful, tight, deep and textured bass that only shows up when in the recording. Too many headphones these days cannot manage that and has bass thumpers all the time, even when not warranted by the music.
Agree with this 100%. Absolutely love that about these headphones, because I CAN be somewhat of a bass-head at times, but with some songs it just sounds wrong. I also think that the HD700 is one of the best at driving this same wonderful sound at lower volume levels too. IMO, they don't lose that energy at lower volume levels. Now, when I was much younger I would LOVE to just crank it, thinking it sounded better just because it was really loud, and didn't distort. Now, I find that a good headphone (to me) is one that can sound great at all volume levels. MY sweet spot (with volume) is considerably less than what it used to be (or what I thought it to be anyhow).