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 brusuz

brusuz
11 posts
 
Sean is absolutely correct--all of the phenomena he mentioned do in fact occur. While electronics changes are perhaps more subtle and gradual than changes in speakers, they happen and are audible for one who has the ears to hear it. His reference to changes in use patterns was particularly interesting. I used a pair of $300 bookshelf speakers for 2 years while looking for new ones. I began pushing them harder and harder as I got closer to replacing them, and listening one day, I had to admit that even after 2 years, they had undergone a major change in sound, and up till then were not truly broken in. I've had my Magnepans for well over a year now, and even with extensive hard use, I have no trouble believing that they are still undergoing changes. In short, believe it!
Chuck
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