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In Reply to: RE: Not DO, But WHY Speakers Require A "Break-In" Period posted by thetubeguy1954 on June 01, 2007 at 14:19:17
> In fact I know it is because I've performed this test at least 5X and
> heard a difference between fully "broken-in" speakers and the new speakers
> every single time.
How? Making recordings in an identical manner and then comparing them would seem one possibility. Is this what you did?
> However once these drivers have been flexed and moved through their normal
> usage they become more pliable, and they drivers adjust to a state of used
> flexibility that the new drivers don't have.
Indeed but how long does it take before the change becomes too small to be audible?
How much "burn in" is typically performed before measuring to make matched pairs of drivers? Note that this operation will raise the price of the drivers and so is a good test of what is really worth paying for by people who almost certainly know what they are doing.
> I suppose there could be an arguement made and to me it seems less
> intuitive that the conductive material and dielectric of a wire and
> components in the crossovers within the speakers, also have to break-in.
> Don't see why not.
This is trivial to measure and you are going to be disappointed with the results for normal components (though not necessarily wacky audiophile components).
> All anyone would has to do to verify this would be to go to their local
> audio dealer and ask them to directly compare a set of their well used
> demo speakers with a pair of the same speakers taken new out of a box in
> front of you.
This is not comparing apples with apples because the variability between speakers is far too large. You must compare a speaker with itself after "burning in" if this is the objective.
In addition, materials also deteriorate with age. Rubber becomes hard, foam crumbles away, metal corrodes, etc... Do you consider this to be "breaking in" or something else? If the latter, then you will have to separate the two in your experiments in order to measure the former.
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