Summary: I have had S HD 515 more than 2 months and more I listen, more happy I am. Before I bought it, I had Bose around ear headphones which delivered sound with too much bass, not so crisp high tones and not very good stage. I paid for Bose 110 euro while I bought HD 515 for 90 euros.
Summary: I find these headphones to be very comfortable. They have good depth, so I use them for the 'live performance'
feel. I also find them adequate on the airplane. The long cord is great even though at first I was annoyed when I used it on my Ipod.
Summary: First off, if you are looking for noise-canceling headphones, you are looking in the wrong place. These are open-back headphones -- meaning they will let all sound in and out... they are NOT built to be noise-canceling.
Excerpt: I've been using headphones for music listening for 40 some odd years and these are the best yet. I've tried them all Sony, Bose, Koss you name it, at this price you can't beet the sound quality.
Pros: Great Sound!! Bass, Midrange And Highs all outstanding!!
Excerpt: I've been using Sennheiser headphones for about 17 years I would say. I have 3 pair now, my very very old HD40 still sound great, and my HDR65 wireless headphones are going on 2 years old now and still have great battery life range and great sound for wireless.
Excerpt: We needed these headphones for a listening program through Advanced Brain Technologies. This unit was one of the three they recommended. I called Sennheiser (the product information person there was very helpful) and he said that although it was less expensive than the other Sennheiser model ABT...
Pros: Great sound quality; lightweight and the fit is so comfortable, you forget they're on
Cons: Not the most attractive design I saw around, but the other features more than make up for it
Excerpt: I use the headphones to listen to CDs on my home stereo and find the sound quality excellent. Music sounds crystal clear and crisp through these. These are lightweight and designed very well; I really like the anti-tangle cord too.