Does anybody think that it's possible that Sony manufactures different models of 7506's?  One model for sale in the US, and one for sale in other parts of the world?  I have been using MDR7506's for a long time.  (20 years-ish).  Have always bought them from BSW, or musicians friend.  I just...

I don't know if those specific 7506's are counterfiet.  But, recently I ordered 3 pair from an individual in China for less than $60 each including shipping.  (ebay)    I've been using MDR 7506's for about 20 years now.    If what arrived are fake, or counterfiet... they are the best...