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Physical explanation of amp's break in?

Recently purchased Moon i-5, manual mention 6-week break in period, when bass will first get weaker, and after 2-3 weeks start to normalize. Just curious, is there ANY component in the amp's circuitry that known to cause such a behaviour?

I can't fully accept psycho-acoustical explanation for break-in: many people have more then one system, so while one of them is in a "break-in" process, the second doesn't change, and can serve as a reference. Thus, one's perception cannot adapt (i.e. change!) to the new system while remain unchanged to the old one. In other words, if your psycho-acoustical model adapts to the breaking-in new component in the system A, you should notice some change in sound of your reference system B. If 'B' still sounds the same, 'A' indeed changed...
dmitrydr

Showing 1 response by dalekroberts

dalekroberts
24 posts
 
My understanding of break in (of components and cables) is that current flowing in new circuitry is finding the path of least resistance through the lattice of molecules that make up conductors.
For components the highest concentration of conducting material is usually in the transformer(s) of the power supply.
Complete break in takes much longer than most manufacturers will admit. Typically, there is a noticeable improvement in the initial hours of operation with gradual further improvement. But in my experience full break in can take six months or longer.
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