Quote Originally Posted by hemicuda View Post
All you have to do is send the older headphones back to Koss and they will replace the cord and cushions. I think it cost about $5 or $10 plus shipping. I've had a couple of pairs done that way before. BTW, the Koss pro 4aa is my favorite still...
I was aware of this. Problem is, the new cushions are foam filled. The original mineral oil filled ear cushions applied uniform pressure around their circumference, sorta like how a water bed conforms to the shape of the body equalizing pressure at all points. They were awesome in "live" environments as the cushions would seal effectively enough to negate most of the acoustic energy in the room allowing you to hear only what's in the mix............. a monitor mixer's best friend.