Let me just start off but saying this is my first set of Headphones, so I have nothing to compare them to. I will just tell you my feelings, and opinion on what I just experienced.
I want to start by saying that these headphones are very comfortable. They are very light, and you could hardly tell you are wearing them. My ears fit right inside the earpads, and the pads themselves are very plush. Perfect for extended listening sessions. The headphones seem to be extremely well made.
I first audition them with "Phil Collins Finally...The Farewell Tour" dvd. From the first track (Drums, Drums, and More Drums) a drum solo with Phil, and Chester Thompson, I was blown away by the these headphones. As I watch the rest of this concert dvd, I was amazed at how Detailed the Sennheisers are. The bass response was very tight. The impact of the HD 600’s bass, I was shocked. The Highs and Mids where also very detailed and clear. They produce a very warm sound. The Highs are not overbearing, but they are slightly bright. Cymbals never sounded so good. Midrange body, and texture was perfect. In my opinion these headphone create a very balanced soundfield.
I then had to hear what movies sounded like. Gladiator. I have watched this movie 100 times, but I have never experienced it like this. After watching the concert dvd, I didn't think it could get better then that. I was wrong. The Depth, Detail, Clarity, and Impact of the Senn 600's is Incredible. The Imaging was so detailed you can hear everything, just like your standing in the middle of the action. The opening scene in Germania, I heard things I've never heard before while watching this movie. The part during the battle when the dog jump through the fire, and Maximus yells "Victor Roma". I could hear all the others yelling it too, something I've never heard. And I thought the bass was good before, Holy Toledo. I'm telling you I'm amazed at how much bass there produce. The burning catapults when they explode in the forest, WOW.
Detail, and Clarity are simply incredible I say again. I recommend these headphone to anyone thinking of purchasing a set. And if your not thinking of purchasing a set, start thinking. I know I don't have any other experience with other headphones, but I can't imagine how much better it can get. My thoughts for anyone with a small HT budget, SENNHEISER HD 600's. Why get speakers.
I continue to be blown away by this hobby.