"Burn in" in amps (and all other electrical parts) - Page 2

First of all, there are some scientists who believe in young earth creationsim, and there is evidence to support young earth creationism. Second, the discussion of creationism, which is essentially involves or intrudes into religious areas, is prohibited on this forum. So let's not go there please (or take this any further).

Finally, why can't the discussion proceed along the lines of what the OP asked? He's not interested in hearing, "there is no evidence," or "anyone who believes there are explanations for amp burn-in is like a nut who believes in God or aliens." He wants to hear some possible explanations. Does every thread where someone asks a question like this have to be diverted with these kinds of comments? Geez.

Capacitors have been reported to need several hundred hours to perform their best. The claim is that the shape of the capacitor casing will change over time and the chemical properties need to "cook" at operating temperatures to form it's final operating characteristics.

Another thought is that cables and board traces will have oxidation that acts like resistance. Running at high current will help burn through these pockets and open the passageway to it's fullest.

I've not made a career on these topics so can't say they are accurate or not. Just reporting what I've heard.


http://www.head-fi.org/forums/f5/wha...period-225678/

So, to summarize, you get in the creationist debate, oppose some arguments, then close the discussion because it is against forum rules, just to be sure that you have the last word.

He wants to hear scientific explanations. Which is a bit different, but unfortunately incompatible with his first requirement : no debate about the reality of the phenomenon.

Quite. And I don't want to break forum rules so you can PM me this evidence instead.

Secondly no-one here can provide evidence for burn in if burn in doesn't exist. That's not how science works. A few people here have provided the most likely explanation if it does exist and that's the best you'll get. Unfortunately the OP is going the wrong way to showing the existence of burn in so we can't provide any more information.

I made my comment to prevent only side of the issue from being presented. I'm more than happy to have both comments deleted. Why don't you report the threads and ask the mods to edit it.

It's not inconsistent at all. It's only inconsistent if you feel compelled to advance a particular point of view, no matter whether it is asked for or not. Go back and read the other threads like this in the past. Here's what you find:

A. "I'd like to hear some possible explanations about why amps burn in."

B. "There are no scientific explanations, and anybody who believes otherwise is a fool."

A. "Please, I'd just like to hear some possible explanations, and I know there's folks who believe that there aren't any, but I think I've heard the effects of amp burn in, and I'd like to hear some possible explanations. I don't want this to turn into a believers vs. unbelievers thread."

B. "Any question you ask about amp burn in necessarily raises issues of science and therefore we don't care what you want, we're going to inundate this thread with comments to the effect that burn in is impossible, and that any explanations for burn in have no basis in fact, and we're not going to allow your question to be answered (without extensive counter-argument) by those folks interested in providing an answer because we have an agenda to advance, and we're going to advance that agenda anywhere and everywhere."

Again, can't some of you "skeptics" grow up and let one thread like this go without thread krapping. Just one? I mean, we get it. You think amp burn in is absurd, and there's no scientific explanation for it. Counting this thread, that's been said on this forum a total of 15,763 times.

it's been discussed on this french hardware site a while ago : http://209.85.229.132/translate_c?hl...6D9fEzao78D9tA

basically, what seems to be happening is called "Annealing"/electro-migration

they only allow the pics to be shown on their own site, so you may wanna look at them on the french portion : http://www.hardware.fr/articles/165-...ng-rodage.html

np

I hope the english translation won't be too broken because this article is very interesting indeed.

I've edited my post BTW

What bashing? After reading this thread, the only one with an "agenda" and arguing is Phil.

My take on burn-in:
Given the absence of any real scientific explanation, I think the most logical theory is the brain acclimatization model that Koyaan discussed. I have experienced it as well. The brain does indeed like patterns.

I also have a question regarding burn-in. All the reports of burn-in are favorable. That is to say the sound always improves over x amount of time. This to me supports the acclimatization theory and any alternate theory would need to account for it to be valid, IMO. If burn-in was purely physical/mechanical in nature I would expect to see reports heading in both directions, ie: "They sounded fine when I bought them but after burn-in were too bass heavy" or some such. I haven't seen such reports.
Food for thought.

What you are referring to here would be "warm-up" rather than "burn-in" I believe. Burn-in being a semi-permanent (or at least gradually reducing) effect on *NEW* equipment.

Right?