[TheNoose]

Liking this...if only I had time to read it! 

 I will soon, what about you, actually its quite a brief history.
 
http://coolmaterial.com/roundup/history-of-headphones/

 

[TheNoose]

I especially like this quote from here:
 
"1910 – Nathaniel Baldwin began manufacturing the first modern headphones. He crafted them in his kitchen and sold them all to the U.S. Navy. This was the first time a pair of cans resembled something you’d see today. Baldwin never patented them, however, because he was an idiot. Source"
 

 

[62ohm]

I didn't know Beyerdynamic was the first to release a dynamic headphone, no wonder they have the word 'dynamic' on their name.