Oh you didn't know, Head-fi admins recently imposed a new rule here at summit-fi that deemed headphones like HE500, LCD2 not summit-fi. The big HE500 and LCD2 general threads are therefore moved away to full-sized headphones forum.
Now I don't know about you but if HE500 and LCD2 are not summit-fi, then HD650 definitely doesn't qualify.
If you don't agree then go argue with Currawong the admin here.
Didnt know. Makes sense pricewise. But well amped hd650 or he500 are right up there. Mine aren't going anywhere and get lots of head time even if they share shelves with Stax O2 and LCD-3.