I have been listening to my new LCD-2 for almost a week now, and I have not come to a clear verdict yet as to whether or not I will keep it. It presents a very different sound signature than what I am used to.
On the positive side, the LCD-2 sounds much more natural than any of my previous headphones, such as the Sennheiser HD650. This is especially true when it comes to vocals, fluted instruments, and percussion. The tone and quickness of such musical elements are far more realistic than what I have heard before. The speed of the LCD-2 also helps deliver more transient detail. For example, I now notice an extremely quick strike of a hihat in one song which I did not hear before. Surprisingly, the LCD-2 also sounds amazing on death metal, which I did not expect at all.
On the negative side, the LCD-2 does not have as much high frequency treble "bite" as I would like. For better or worse, I have come to expect a certain sound signature when it comes to hi-fi (speakers or headphones), which includes a certain level of brightness and transparency. Although my previous headphones (HD650) are not exactly what most would consider as bright, given my source (Wyred4Sound DAC-2) and amp (Beta 22), they were nowhere near having a veiled sound, IMO. I would be happy if the LCD-2 had at least the same level of brightness, but this is not the case. Days of the New, an acoustic rock band, sounds better on my HD650. The sound stage is also better on the HD650, I think.
Additionally, the LCD-2 is not as comfortable as I would like, given its weight and clamping pressure. Although comfort seems to improve the more I use it, I am still unable to forget that it is sitting on my head when I am listening to music, which is one of my main goals.
IMO, the LCD-2 is amazing in the areas where it excels (natural tone, quickness, mids, and bass), but I'm not sure those advantages outweigh the costs. I'm going to keep listening for now, though, and see if my mind changes. If not, I think I will look into the HD800.