$500.
But it wasn't just that. It was as if they'd never done a repair before.
They told me they shipped it and then forgot about it, until I reminded them.
Then they didn't ship it via 2-day, even though that's how they always do it (and I even reminded them a few days before).
So basically they botched the whole thing and somehow I didn't get my headphones back by Christmas.
So I'm going to avoid the LCD-4 unless I really want to roll the dice again!
And I reserve the right to delete this post if I need to sell my LCD-3.