The speakers are NOT breaking in, you are getting used to them. I am very glad you are so excited about them. Are you using them with a sub? If so, how do you have the speakers setup in the receiver?

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85