Listening to some binaural DoubleDSDs... Strange thing is I just ordered this Monday night. Completing the Pulse survey gave a single color discount option of Out (possibly already staged). I went with 450 $149 version (some thought the 1000 signature a bit U-shaped). Very surprised to see arrive today (without shipping notice or even charging my PayPal). Need more time. Work getting in way. Will say with HD580s pretty damn good for $149. Grahame, I'll bring it along tomorrow if you want to give a listen.