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IF YOU TURN ON THE AMPLIFIER the power is protected the pre amp did funcion

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A precise model and make might yield a more-specific answer.

Generally speaking, an amp protects itself from heat, shorts and overloads.

Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good..

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

Posted on Dec 30, 2010

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1 Answer

I have an older creek 5350se. It has what appears to be bridging pins connecting the pre with the power sections of the amp. Can I connect the creek as a pre amp to a power amplifier.


Hi Lorne,

You can use the amp as a pre by removing the 'jumpers' - or as a power if required.

The 'jumpers' are simply used to connect (or disconnect) the amplifier's pre & power sections.

Hope this helps.

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Does the NHT sa-2 have it's own pre-amp? Because I'm wondering if the power off only works when it's own pre-amp is used? So when your receiver is connected it's shut off.

You could try something connected to it's own pre-amp (if it has one) and see if it goes off when there's no signal from that.

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When i turn up the volume my amp shuts down i turn it down and it comes back on. I have a crossfire vr1000d what am i doing wrong?


Hi,
Is the protect light in your amplifier turns on when it shuts down? If yes, then your amplifier lacks voltage. The reason why it goes on protect mode is, the amplifier is needing an amount of voltage from your car, since your car cannot provide that amount of voltage your amplifier is not getting anything, instead of getting voltage to produce watts its getting minimum voltage & producing heat, to save itself it goes on protect mode so the incoming power shuts off & cools the amplifier.
Example:
Your on vol 40, amplifier is working fine, when you turn it up to vol 50 your amplifier shuts of, then you put it back to vol 40 & your amplifier turns back on.
At vol 40 your voltage is 12v or above. but in vol 50 your voltage drops to 11 & below.

Check your battery or alternator if they are giving enough voltage


Hope this helps your inquiry. Have a blessed weekend.

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1 Answer

What's the difference between integrated amplifier and power amplifier?


An integrated amp has the Pre-amplifier built in ( Volume and tone controls)
A power amp has no tone controls and no pre-amp section

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1 Answer

Power protect light stays on my amp its a power acoustic ps2-820


Unplug all the speaker wires and try it again, if the amplifier turn on
yo have a bad speaker, if the ampliier still in protection mode, check all the fuses in the amplifier and near the battery,
if they are ok you have a bad amplifier
good luck

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Speakers are connected to pre-amp or power-amp? pls explain connections , what connects with what , between cd player + pre amp + power amp + speakers.


Do this, CD audio out jacks to the PRE-AMP INPUT jacks, then PRE-AMP OUT jacks to AMPLIFIER INPUTS then from AMPLIFIER to speakers, This will work similiar with any sound source unit ie. Radio Tuner, Tape deck, etc. Just think of it this way, a PRE-AMP is BEFORE the AMPLIFIER, all the AMPLIFIER is going to do is AMPLIFY the sound to your speakers, HOPE THIS HELPS!

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Can u help me


The amp probably has shorted outputs. Do you want to try to troubleshoot it and repair it yourself?

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Thumping speakers - no power light is on - wired correctly


the amp is going into protect mode due to something wrong in the amp or some thing in the wiring to it ooh yea if you are getting 18v power to the amp that is way to high it should not be higher then 15v if the amp is in protect mode it will not play at all.

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Amp Power light will not go on. Protection light is lit- Thump sound in speakers


It probably has shorted output transistors. To eliminate other possible causes, read through the following page.

Amplifier in Protect Mode - Troubleshooting

Let me know if you have any other questions.

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Amplifier does not turn on anymore.


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