Don’t have HD650s anymore, liked them a lot and they translate well but found the clamp too much, even after stretching them out.
I much prefer the LCD-1s, both in sound and comfort. The bass isn’t huge like bigger LCDs, but it’s really clean and doesn’t roll off like 650s. The treble is nicer to me too, especially with the Reveal plugin. The sound stage is probably smaller, but that doesn’t bother me.
I’ve been listening to them constantly for a few days and I could swear they’ve opened up and sound even better. Not sure if it’s burn-in or just my brain getting used to them though.
Totally contradicting myself from my last post, but I like these so much I can’t stop thinking about the LCD-X now. I’m sure they will be too heavy for me, but tempted to get a pair just to try them side by side.