M5_to repair
New Member
no doubt the Koss plastic gone hard is unconfortable , hence the need for replacement (my Pro4 AAA was bought new in France at about the same time as yours)
the "D" shape is on the "headset" side of the pad, the flat bit to the front, the "ear" side is nearly round
you can see this on the DIY thread below
http://www.just-hifi.com/Koss-Pro-4AAA_10276822.html
the "D" shape is on the "headset" side of the pad, the flat bit to the front, the "ear" side is nearly round
you can see this on the DIY thread below
http://www.just-hifi.com/Koss-Pro-4AAA_10276822.html


