"Stewart Pinkerton" wrote
Since you yourself
acknowledge that you have not observed drivers wearing out, how could
they possibly 'break in'?

Pardon me for lack of clarity. Let me begin by repeating myself then
elaborating on what I meant to say but apparently failed to say clearly:
And I have seen speakers virtually beat to death by musicians, DJs, and
fans of very loud rock and/or
rap, but I don't anticipate that anything I do will cause speaker failure

By referring to seeing speakers "beat to death" I refer to the weakening,
splitting, tearing, and eventual malfunction of cones, surrounds, and
spiders that I have seen after extended hard use, as well as capacitors
exploded and voice coil formers melted . I would consider this to be
wearing out prematurely because of abuse, but based on my personal history I
don't believe any use I would make of a speaker is likely to wear it out
within my anticipated period of use.

Wylie Williams