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I have a dual electronics 4 channel amp that goes into protect mode as soon as i throw power to it

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Unplug all the speaker from amp then power on. if you still have a protect light amp is bad and if you have no protect light continue to hook up each speaker one by one while amp is on till you get a protection light and that speaker would be the source of your problem

Posted on Jun 08, 2010

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Gos in to protection mode as soon as you aplly power


Check for a short circuit in the wiring of the output speakers or a shorted speaker voice coil, also check for correct voltage to the POWER AMP while in use... when an AMP goes in protective mode this means two things A SHORTED OUTPUT or A INCORRECT VOLTAGE TO THE POWER AMP. if all the above is OK than the AMP is defective. are you using correct speakers OHMAGE 4, 6 8ohms??? according to your AMP.

Good luck!

Feb 17, 2011 | Soundstorm Force F2800 Car Audio Amplifier

1 Answer

Protection light


Disconnect one speaker at the time (at the amp) until the protection light goes out, then you know where the problem is.

If your sub is a dual coil wired in parallel and you run it with the amp in bridged mode the impedance will be too low for many amps, seeing it as a short. Then wire the dual coils in series instead or run the coils on one channel each.

I've also seen coils in speakers melt and short out partially, causing too low resistance as seen by the amp.

Good luck!


May 24, 2009 | Insignia 600W Bridgeable Amplifier with...

2 Answers

My amp automatically goes into protect mode


There are 4 reasons an amplifier tries to protect itself.

Overheating - thermal shutdown.

Over Impedence - The subwoofers installed are not configured into a load the amplifier can handle.

Output is grounded - a positive wire strand may be touching the ground terminal - a wire may be shorted, or a speaker voicecoil is blown.

Intennal problem - Output on amplifier blown, or some other component has failed.

Check your wiring to the amplifier again - if all is good - disconnect the speakers and try to power on. If the amplifier turns on normally - test the speakers for blown coils.

If the amplifier still goes into protect mode - the problem is internal and needs professional repair.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

May 06, 2009 | AudioBahn A2301 2-Channel Class A/B Mosfet...

1 Answer

The amp turns on but goes to protection mode


Have you checked the REM wire, if it is the wiring may have gotten fried.

Or you may need to get new parts replaced within the amp.

Both issues happened to me.

Mar 27, 2009 | Car Audio & Video

2 Answers

Denon AVC-A1SE in protection mode


The numbers of the transistors thay you need to replaced are on the transistor themselfs. Just take out the bad transistors and get the numbers that you need. I ALWAYS replace the output, driver and bias control transistor myself. One thing to keep in mind, if the number on the transistor starts with "A or B or C or D or K" you need to add "2S" in front of that number when you order it. Now that this problem has repeated itself, double check your wire and speaker. They can cause this problem.

Nov 09, 2008 | Audio Players & Recorders

1 Answer

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.

Nov 02, 2008 | Visonik Dual Bass Box with Amplifier Car...

1 Answer

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.

Oct 31, 2008 | Visonik Dual Bass Box with Amplifier Car...

1 Answer

Car audio amp in protection mode


If you power up the amp with the RCAs plugged in, does it go into protection mode.

If you power up the amp with the RCAs plugged in, does the woofer pop?

Oct 26, 2008 | Pyle PLAD413 Car Audio Amplifier

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