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Is there a sequence for a protection mode on my amp

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Excuse me I was completely confused here. Well protection is just a feature with amplifiers in order to ensure they wont' burn up if too much power is to them or if they are incorrectly wired. If the amp is going into protection there is a problem. More than likely you have the subwoofers wired up incorrectly. You have to wire them up correctly in the box before you hook them up to the amp.. If you leave them incorrectly hooked up for too long the amp will fry then it will go into protection for good. Not cool when your investment is fried because of a silly mistake. Go to www.the12volt.com and look about an eighth of the way down the page in a list there is a menu for subwoofer wiring diagrams.

Posted on Jun 14, 2009

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1 Answer

MY soundstream LiL Wonder 4.620 is only going in protection mode


Disconnect all speakers Meter power, remote, ground at amp, if all is good move on, if not check main fuses
Turn amp on; If in protect mode then your amp is toast Turn amp on, if not in protect mode then start reconnecting speakers one by one until your amp goes into protect mode, then you'll know which speaker is bad.

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Hi... If all the speakers are connected properly then I would say, there is a failure in either the power supply filtering caps or one output has failed and it's going into Protect mode to keep from frying the speakers
It will require service at that point.

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Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. . Double check all connections. Good luck.
A thumbs up would be greatly appreciated if this answer is helpful to you. Worth fixing.
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Amps shut down due to, A: Short circuit, B: Overload. C: Over Heating. It is possible that the Output devices inside the Amp. get too hot during use, Are your speaker "Leads" "Big" enough? Is you Power Positive wire the same, Also as you say, Check your Earth. Sometimes a Fan on the output devices helps.

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I have a Harman Kardon AVR 235 Receiver that go's into Protect


To avoid making the avr go into protect mode when you power up your Hafler 4000 that is connected in the avr's pre-out, you must power up the set up in the correct sequence.

1. Turn off your avr
2. Connect Hafler 4000 to the avr's pre-out it it is not yet connected
3. Turn on your Hafler 4000. The avr will not go into protect mode becasue of the transients from the Hafler because it is still not powered on.
4. Turn on you avr. There should be no more transients from the Hafler at this stage unless it is not functioning correctly, so the avr shouldno longer go into protect mode.

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The most common reason for an amp to go into or remain in protect mode is shorted output transistors. To eliminate other possible causes, read through the following page. Let me know if you have any other questions.

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The most common reason an amplifier goes into or remains in protect mode is shorted output transistors. To eliminate other possible reasons for it to go into protect, read the following page.

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disconnect power and try after 20min without speakers.

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