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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: Really? posted by Danny on April 14, 2007 at 10:55:32:
Lets not confuse measured changes in driver parameters with audibility of those changes.The audibility of driver break-in, if not already handled at the factory, is VERY unlikely to last beyond the first hour or two of use unless the driving signal is quite weak and does not stroke the drivers to at least 1/3 XMAX.
I have been building speakers since the 1960's using non-broken in drivers. The worst drivers for break-in have been subwoofer drivers with heavy duty and/or dual spiders. But every time the audible portion of break-in has passed after one LOUD (as LOUD as I could tolerate) bass heavy techno bass or rap song lasting perhaps three minutes. Break-in could have been complete in ten seconds, but I did not come back into the room until the "song" was over.
The epoxy/chemicals on the driver's spider will 'micro-crack' in ten seconds with a long enough driver stroke -- and that could be accomplished in ten seconds during quality control testing at the factory, perhaps using a sine wave tone at the driver's resonant frequency of sufficient strength to push the cone to XMAX, or better yet, to the rated XMECH.
That peoiple claim to hear break-in for 100 continuous hours of use, which could take months, is a silly belief for ordinary cone drivers.
Of course audiophiles have many beliefs.
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Richard BassNut Greene
Subjective Audiophile 2007
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Follow Ups
- Changes in driver parameters only SUGGEST changes in frequency response that COULD be audible by SOME people - Richard BassNut Greene 07:34:20 04/17/07 (1)
- Hilarious - Danny 16:28:39 04/18/07 (0)
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