This is a quote from Monitor Audio Platinum series manual:Running-In
As with all loudspeakers, the Platinum Series Loudspeakers require a certain amount of
running-in time before the very best and optimum performance is achieved. A running-in
period of approximately 100 hours should be adequate. A gradual improvement will be
noticed throughout this period. The time required will depend on the conditions in which
they were originally stored (cold or warm), and general household conditions (again, cold
During the running in period play them at approximately half of your normal listening level
so that the drive units are not overstressed.
I take it as marketing speak, carefully worded to avoid any commitment or specifics. 'very best and optimum performance achieved' - no info on what performance parameters are meant and wehre these are best or optimum.
'gradual improvement will be noticed' - improvement of what? how much?
'100 hours should be adequate' - for what?
'time required will depend on...' - how will it depend?
'overstressed' what does that mean? some forces in the driver parts would go over design limits if I play them 80 or 90dB? nonsence.
excellent example of weasel wording