As I remember my dates are "02 04 07" on both of the drivers.
post #61 of 502
9/18/07 at 9:12am
The three people that have posted they've received 650s with drivers stamped 580 do not live in the US. This shouldn't make a difference as Sennheiser is not a US product, but I did notice.
I wonder what's going on?
I'm afraid to take apart my HD600. I'm afraid the drivers will say "k701" !