These are recent headphones...
My prefered one are vintage one:
Sextett AKG K240 and my first over all others i listened to by far :
AKG K340...
I used the Koss KPH 40 for walking outdoor because of light weight and confort or for the computer youtube interview...
I used the Fiio FT1 to walk inside in winter because of his passive isolation..
I used the sextett for documentary, movie and computer use....
I use the K340 for real quiet music listening sacred session...
This rare hybrid now was the best audio purchase in my life... All other audio gear are replaceable not this one ...

