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Very Loud Pop through Speakers when I turn power on my pre-amp


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#1 of 10 OFFLINE   alomb1971

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Posted March 09 2007 - 09:55 AM

I have had these seperates for about 7 years and my pre amp has just starting popping extremly loud through my speaker,when I turn it on. Any ideas? It's a AMC and my amp is a ATI1505.

#2 of 10 OFFLINE   alomb1971

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Posted March 10 2007 - 05:31 AM

Well,

It died today...May it rest in peace.

Time to start researching a new one.

#3 of 10 OFFLINE   Chu Gai

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Posted March 10 2007 - 07:12 AM

It was a good preamp. Any who knew it said it was worth at least twice the price. It was only seven years old and we'd all hoped that it would live longer. We remember all that it had accomplished in its short life, but it was cut down in its prime by a monumental series of pops. So, with a tear, we commend the preamp to the Almighty's care. Silicon to silica. Metal to rust.

Amen.

#4 of 10 OFFLINE   JohnRice

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Posted March 10 2007 - 08:14 AM

Still, that is a pretty common occurrance. That is why so many power conditioners have staged switching. You turn on the pre and the conditioner waits 30 seconds to turn on the power amp. That way, it is not possible for the pop to get to the speakers, since the power amp isn't on yet.

BTW, are you posting under two different accounts? That kind of causes confusion.

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#5 of 10 OFFLINE   alomb1971

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Posted March 10 2007 - 01:53 PM

JohnRice,

I had an account a few years ago, but I couldn't remember my information. I did start a new thread though on recommending pre-amps. Is that what you meant?

Anthony

#6 of 10 OFFLINE   Chris Sherman

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Posted March 13 2007 - 03:34 PM

Always turn on your power amp on last and off first, this would eliminate the problem. Probably just a transient but if loud enough could be bad for speakers.

#7 of 10 OFFLINE   DaveHo

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Posted March 14 2007 - 01:09 AM

Might be a relatively easy fix. Many preamps have a relay across the outputs that only engages once the unit stabilizes after turn on. Sounds like it may have gone bad. First it was stuck closed causing your popping. Now it sounds like it's failed in an open state. Does the preamp power up or is it completely dead?

-Dave

#8 of 10 OFFLINE   alomb1971

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Posted March 14 2007 - 07:24 AM

It's completely dead.

#9 of 10 OFFLINE   alomb1971

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Posted March 14 2007 - 07:26 AM

Quote:
Originally Posted by DaveHo
Might be a relatively easy fix. Many preamps have a relay across the outputs that only engages once the unit stabilizes after turn on. Sounds like it may have gone bad. First it was stuck closed causing your popping. Now it sounds like it's failed in an open state. Does the preamp power up or is it completely dead?.


It's completely dead.

#10 of 10 OFFLINE   Rick Chaisse

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Posted June 09 2007 - 05:58 AM

sounds like an electrolytic capacitor in the amp's power supply went bad.
If the amp is that good, see if there is a electronics repair shop nearby that could check it out for you.