Quote Originally Posted by bowtie427ss View Post
I have to agree with OG, those old forty pound feeling double A's are still my very favorite headphones, i preferred them even over the ESP-9 electrostatics. Too bad you can't still get the original type oil filled ear cushions, i believe they made a difference in LF, probably by creating a more uniform seal.

If you prefer an "open" chamber type headphone, the industry standard AKG 240M are very good if you're not into high SPL's. They sound very good, but for an open chamber "lightweight" style headset i prefer the Sennheiser 4XX series.
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...