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Old 9th November 2011, 01:23 AM   #31
SY is offline SY  United States
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Cough-cough, 23-20, cough-cough.
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Old 9th November 2011, 01:28 AM   #32
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I'd be glad to slap you on the back if you need to cack up a hairball!
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Old 15th November 2011, 08:06 AM   #33
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Steelers??? A football team? A hockey team?

Translation required.

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Andy
Nah, I think it is in reference to an all Male Review Show
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Old 15th November 2011, 02:31 PM   #34
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Ok guys, back on topic now ok. I am into the midst of this hoopla concerning capacitor burn in with my crossovers. I re-capped them and installed a notch filter because a new tweet was added. It is a well known mod for my Polk SDA2Bs . Anyways they are bright as the sun now. Many that have the mod are telling wait 3-400 hours of listening and they will smooth out.

Heck I may be dead by then!
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Old 15th November 2011, 02:38 PM   #35
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Scientific proof or not, burn in is a reality.

You can't measure everything, like it or not
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Old 15th November 2011, 02:49 PM   #36
marce is offline marce  United Kingdom
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How is it a reality, and what happens during burn in, what changes, if anything electrical it should be obvious, and will be measurable. Ears do burn in though (adjust to the new sound).
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Old 15th November 2011, 06:17 PM   #37
andyr is offline andyr  Australia
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How is it a reality, and what happens during burn in, what changes, if anything electrical it should be obvious, and will be measurable. Ears do burn in though (adjust to the new sound).
If you don't want to believe in it ... don't, then. You're a big boy now. But allow others their right to hold different beliefs.

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Old 15th November 2011, 06:41 PM   #38
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Originally Posted by serengetiplains View Post
I changed the rectifier bridge from the old, heavy workhorse (circa. 1985) to a new, sprite FRED module. No change in the spike. I also swapped out the three circuit boards, exchanging them with those in my other Elgar, and no change.

That leaves: the wiring, the two banks of output transistors, and the transformer.

And the capacitors.

Here's today's visual.
Turn everything off and let the stored charge bleed down. Now place a moist paper towel around each of the new capacitors. Let the moisture content go up for say a day. Then try your test again. I suspect they will revert to like new conditions!
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Old 15th November 2011, 06:45 PM   #39
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If, as example, old capacitors can be reformed using a slowly applied voltage, it doesn't seem to me to be outrageous that something similar could happen with newer capacitors. As a self-styled scientific type, I'd like to have some sort of an answer to actual mechanisms, though the alternative is probably more blissful.
BTW, in each and every case, if a difference is heard something is being measured.
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Old 16th November 2011, 05:31 AM   #40
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I think something is happening, but we don't quite understand it at this time.

Although, that doesn't mean that it won't be worked out at some stage down the track (progress).
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