Bah... Speaker "break-in" is a myth... It is more of your ears and brain breaking in to the speakers than anything magically changing with the speakers. Proven time and time again, but still a lot of people think that it exists...
As with any setup, there will be tweaking and tuning. Your room configuration and variables will prove to change things as much as the speakers themselves until it is "tamed"... There are all sorts of benefits to that, but for now, just enjoy the quick and easy tweaks that you can do with your receiver and enjoy your new purchase. They are great speakers and you made a great choice...
