I've owned and used AKG K240s (and the discontinued K240DF) for more than a decade.  The quality of the product has fallen CONSIDERABLY since manufacturing moved to China.  To be truthful, this was never a particularly durable headset, but the old models made in Europe were head and shoulders above what AKG is shipping now.  They feel flimsy coming out of the box, and the product I received has a poor solder connection internally that makes the right channel audio cut out when you turn your head.  The plastic ear cup is already partially cracked and I've used them for just two months in studio.  The ear padding isn't as soft or comfortable as the old model, either.