Tripokaridos
500+ Head-Fier
Having just picked up the 660S to replace my 650s
I really cant ever do that, replace my hd650 to what ever headphone... I got my self saying oh look that has better imaging better clarity resolution biger soundstag faster etch etch ...I put my HD650 back to the stand and i only use HD660s and Sundara daily and after some days i take the HD650 out and use them again they are so warm so smooth so veiled and easy to listen , these are my sleeping goodnight headphones ....