does anyone know if there is a difference between Sennheiser 609 silver and 906?
have any of you AB 'ed them?
I have 2 609 silvers and I really like them but it looks like i need to pick up 2 more and i'm wondering if the 906 is worth the additional $
is there a difference between the 602 and 902?
i think that they just decided to charge more money and they are going to discontinue the 600 series.
thanks!