i had this unit 8/11 but i never had the time to check it out or break it in until Saturday 8/15... i started the break in process. i have this Sony disc explorer DVP-CX995V- that the kids gave me for Xmas!! THIS THING IS SOOOO BIG" (400 DISC) so i decided to start using it to store my Cd's in. well i had to find some use for it before they return this summer!!

well i hooked it up to my receiver with <> 150 Cd's inside the belly of the beast, then i plugged the HD 650 straight into receiver.....i had it breaking in from Saturday night until Thursday morning' as i have a long weekend of listening to do.... MY IMPRESSION'S ON THE 650 IS ALL GOOD...BALANCE & TRANSPARENT SOUNDING,MINIMUM
DISTORTION,SMOOTH,NATURAL,OPEN, THE ELEGANT TITANIUM-SILVER FINISH WOW!! IMHO' this is the best headphone i ever hear and own, it has to be amongst the best of best, and yes MR.Peabody the 650 wanting lots power is really exaggerated as you mention' because it sounded very good straight out of the receiver, on Thursday when i first put them on it was feeling some what tight but after 2 to 3 songs i forget i had them on' these cans are off the CHARTS.