I had an LCD2 for a few weeks and I did not like them for rock. The bass was very prominent and the mids felt recessed compared to my old RS2s. (and current HF2 and PS1000)
The LCD2 is very good but since it delivers so much bass, it can overwhelm the midrange. it's not bad, muddy bass, but there's just so much of it, it cant help but be the most prominent frequency that you hear.
I think you might not be used to what bass on your recordings is supposed to sound like. The FR graph is dead flat (i.e. not bumped up in any way) and the 30Hz square wave responses are well....square. Unlike any other headphone I've seen yet. So that would indicate that the drivers are reproducing the input square wave.
For fun, I suggest you have a look at the Grado FR graph and square wave responses. The drivers are clearly struggling to reproduce the input single. So the "too much" bass is actually closer to what's on the recording with the LCD-2s than the no-sub bass/mid bass hump Grados.
Edited by MacedonianHero - 8/22/11 at 5:44pm