Hi all,   I know from a friend that the newest RS1e with brown headband sounds very different than the black RS1e, in better way for him.   I am going to buy a RS2e, but there are also 2 versions now in Europe at same time, the brown and black one. Most sellers are still selling the black...

A friend told me that NFB-28's DAC ist not as good as his NFB-1, just soso, is this true?   And how is the amp compared to NB-3?    Thank you!