You know we could get into very long winded discussions on this topic. Not once in any case study that has been done has anyone been able to see any change in the speakers performance. Forget human listening tests, I believe that as in most things you become accustomed to the sound that after listening to the speaker for some hours you ear becomes tuned so to speak to the speakers sound and all of its nuances. Show me some lab test that has proven otherwise and then we can talk about it. From an engineering stand point there is no logic in the statement, and these same people when not told which speakers are which (new vs. “broken in”) have failed there own tests in blind testing by not being able to pick out the "broken in" speaker. Axiom them selves have posted may times the same response that in all lab test they have not seen any measurable difference to the speaker’s performance after a run in period.