Excatly my thought! While Sony does not make good value to perfomance ratio, I still like it don't know why! The MDR-7506 are great for the price thought.
While I always wanted a new headphone specially from those 3 brands, it's not easy to get. Specially when you are in Brunei. XD
OMG! I really like the HD600 sound signature if others were right about the RS220 similarity with the HD600 with HD600 much refined! Definately gonna buy them if I can find them cheap around my neighbor country xD
thanks for sharing!
I think the RS220 is design to be closer to sound like HD650