560 was bright in the begining, and was still brighter later on. I really don't understand this hrs thing, it's not going to change the signature. Headphone drivers don't magically change sig over time. I really don't get where people get the idea for diver burn-in from? Don't yall question stuff? Like other possibilities? Your head? If you've been in this hobby long enough, you've had plenty of times to ponder stuff.