Hi Guys, I have a brand new HD800S for sale, everything included. Will supply the receipt of sale from authorized UK based dealer (audio store near London). These are 2 months old. I bought these mainly for testing. Asking 915 GBP, cash on collection welcome, I'm in Hemel near London. Could arrange pick up in London if required. These have not yet been registered for the 10 year warranty. So you can do so in your name. Cheers!