I concur, although I wouldn’t say “way” better but enough of a change to make an important appreciable difference in overall music enjoyment.
With regards to the LCD-2s, they’re a compliment to the 800s, especially the base…an interesting phone and great to chill out with but the lack of treble extension constantly made me feel I was missing half the music.
I’ve recently let mine go and replaced them with the HD650s (also HD6XX) for when I need a break from the 800Ss resolving power…. just received a pair of AKG K7XX and they’re also IMHO an alternative/ complimentary phone.
Completely agree that the HD650 is a better option than the LCD-2 (or LCD-3 or LCD-X for that matter).