Concerning the xcans my comments are for when it is driving the harder-to-drive headphones which is where a properly damped LCD-1 falls. Subjectively, my LCD-1 is harder to drive after I added some additional damping in the cups. Also, my listening impressions on the newest version are pretty limited but nothing I heard leads me to believe its performance has changed to any great degree. I will be happy if I'm shown to be wrong in this regard as I have always liked the tonality of the xcans.