the BEST

These headphones are, as far as I'm concerned, the world standard in excellence. This model has been around for almost 40 years; If you treat them carefully, don't yank or stress the cables they will serve you well. BTW, it seems like the price has come down too. We were paying close to $100 for them in the old days, if memory serves. I used them when I was doing Top 40 radio in the 70's and you could blast them and they kept on going. Ambient noise isolation is the best, and frequency response is unequaled. I absolutely love these headphones.

The downside (and this is a serious matter) is that they tend to short out easily. Brand new phones are good for daily radio use (6 hours a day 6 days a week) for only about 6 months before they start to short out. Koss needs to do something about this long-standing problem. Sony, on the other hand, never short out.

Plus, they are rather heavy; put a mic on these things and they are downright bulky.