GREQ
Headphoneus Supremus
141/2 and 240/1/2 are open
171/2 and 271/2 are closed
So you'd think that sets a trend for the x40's to be open and x70's to be closed, but nope the K140 is closed
I think that's it, unless there are more exceptions somewhere
K140 comes in two flavours, one closed, and one open/semi-open.... just thought you needed to know... you know... to help you sleep at night.