i've had both types, out of the two the koss hands down were the best for me,a little tight on the ears for all day hunts but otherwise very comfortable,i received no enjoyment what so ever from the calrads at all.although i will say that when i bought the koss phones they were top of the line and they were sold by whites with a lifetime warranty close to $100 bucks,and the calrads i had were probably their cheap set,so the koss took it.the koss phones broke i sent them in with $5 for shipping and they sent me a fresh "used" set that i really weren't to pleased about,oh they worked fine but the pair i sent in were still like new,and the pair they sent me were obviously used,scuffs and stuff but they held up fine for me.