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In Reply to: What I finf troubling is, in many cases, an absence of documentation posted by Analog Scott on October 24, 2021 at 11:56:05:
Danny at GR Research did the science and took the measurements -- see link. Typically, over an extended period of burn-in, a woofer's Fs will drop a couple of Hz, Qts drops a bit, and Vas increases a bit. Nothing drastic, but enough to be measurable and probably audible.
This is to be expected of any mechanical system with flexible elements, where flexibility increases with use. Think of a stiff new pair of shoes. At least new woofers won't give you blisters.
As for electronic parts like wires, capacitors, resistors, transistors, etc., I've never really seen any credible documentation for break-in. I've definitely heard amplifiers sound more "relaxed" an hour or so after a cold start as they warm up to operating temperature, but that's every time, not a permanent thing.
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Follow Ups
- Plenty of documentation on speaker break-in - Brian H P 10/25/2113:11:02 10/25/21 (3)
- now that you mention it - Analog Scott 07:03:21 10/28/21 (1)
- Interesting. Perhaps they over-tension the diaphragm at the factory . . . - Brian H P 13:53:14 10/29/21 (0)
- The skeptics' refrain: I've looked but can't find it anywhere." Nt - geoffkait 14:01:58 10/25/21 (0)
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