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"most of it occurs in the first 24-48 hours of playing time" = a gross exaggeration not supported by data

I'm not going to demand even one DBT showing audibility at 24 hours or 48 hours of use, because I know you won't have that data.

But I do challenge you to supply any cone driver data showing more than a tiny T/S spec change after the first two hours of initial use.

For one of the three T/S specs, either FS or Qts, almost all the permanent T/S spec changes will be measured in the first two minutes of initial use.

The term "initial use" means sufficient voltage to stroke a cone to at least 1/3 of XMAX. And that's usually done at the speaker or driver manufacturing plant during quality control testing.

I know the spider of a bass driver could take a lot longer to break in if the driver was only used to play a string quartet at 60dB.

But '24 to 48 hours of use' is just a golden ear audiophile belief (usually 100 hours is claimed = you're slipping) not supported by any data or any controlled listening experiments. Just the usual "I know what I hear, and I'm never wrong" boast .
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Richard BassNut Greene
My Stereo is MUCH BETTER than Your Stereo

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