2. amps-preamps
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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 wywhcan

wywhcan
39 posts
 
A few points that were mentioned in the above post and responses:

- manual mention 6-week break in period for the unit (SimAudio)
- component values shift over time (known fact,though this aging process is much longer than six weeks)
- break in or "settle" (Sean) VS breaking-in until it breaks down (Pbb).

The last one is definitely worth my 2 cents. Personally, being an EE, I prefer the term "settling time". And our ears settle to the unit's sonic signature long before any radical change in any passive component value (active components, being bias dependent, are excluded). Of course, no break-down is ever desirable.
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