Yes I just want to add that I use the lisst tubes at the moment and I believe the Lyr 2 sounds reasonably neutral on its own. And I agree the LCD2 is clostrophobicly dark, small soundstage, no air, attenuated treble and big tight visceral bass that extend very deep.
I am curious to understand if it's the dry mids that give more room for the treble to "shine" with the HE560. Also I am a bit confused about the definition of bright here. A v-shaped sound doesn't match my definition of bright. I think bright is something like the grados, when you have poor bass and spikes in the upper regions. I think the HE560 has a slightly unfocused but present bass, with a shy extention (little sub bass) and that the brightness is just an illusion from the relation between the mids and the treble. If that makes sens. Since there is no air, or very little, I can't believe the treble is bright here.
We need a frequency graph