Pros: SQ!, build quality, design, comfort*
Cons: comfort* and sometimes bass
Lets start with:
Design, build quality & comfort:
They are white - thats what people notice on the first look. I must say I really like the design and the "feel" - The leather headband is a nice addition to the white and gray colors.
Build quality is very very good - they are very sturdy and don't feel like breaking apart after a month. I dropped them incidentally few times, rolled with my chair over the cable and they are still in prefect condition. 4 Stars
*Comfort - before I bought them I read alot about the comfort (haedband) issue and when I put them first time on my head I was sure that the rumors were true - the bumps were digging a hole in my skull.
BUT: I got them about 2-3 months now and the comfort is no longer a problem for me. About a month ago I tried to soften the bumps by squeezing and pressing them. I'm not sure if it helped, but now I think that they are one of the most comfy headphones I tried! The best are the pads - very thick and deep:) 4 Stars
The K701 leaks alot to the outside - they could be very annoying to other people. They also don't block much of the outside noises.
When I put them first time on my head I was simply out of my breath - the amount of details I've never heard was amazing! Vocals also sounds great.
They shows their best when listening jazz, ambient, chillout and classical. Sadly they DO NOT rock. They sound very thin when listening SOAD, Korn or Sepultura:/
The BASS issue: the bass is tight, controlled, very deep, the only thing lacking in K701 is bass IMPACT in bass-heavy music and rock/metal.
They've got huuuge soundspace (some say: too big). This is a feature, which makes them great for movies (at least for me).
Amping - is another big thema with K701, but DON'T EXPECT NIGHT/DAY DIFFRENCE! - if You don't like them unamped, you'll probably won't like them with powerful amp. When properly amped their sound becomes more smooth and less fatiguing - the bass is also a bit better in all aspects.
Burning in - beat me, I'm not noticing any spectacular diffrence over the time.
Overall: 4 and half Stars
If youre looking for high details, great with jazz, classical (!) and vocals headphones you can't do better at 250$!