Question about Pioneer GM-X542 Car Audio Amplifier

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SOUND CUTS OFF AT HIGH VOLUME AND POWER LIGHT FLASHED RED

HI...MY PROBLEM IS MY AMP WAS WORKING FINE AND STILL DOES AT VERY LOW VOLUME BUT WHEN YOU TURN IT UP THE SUBS CUT OFF AND THE POWER LIGHT FLASHES RED. PLEASE SOMEONE HELP ME AND TELL ME THE AMP ISN'T SHOT.

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  • Anonymous Mar 30, 2009

    same as above

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  • Master
  • 631 Answers

You need to check the DC voltage across the power and ground terminals of the amp. If the voltage drops below ~11v when the amp shuts off, you need to check the power/ground wiring and fuses.

If the voltage remains above 11 volts, you may have a problem with the load on the amp (incorrect ohm load, shorted speaker, shorted speaker wires...).

Posted on Jun 14, 2008

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Posted on Jan 02, 2017

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My nitro bmw 486 cuts out when i turn the volume up alittle bit,subs start crackling and distorting turn volume back down sounds just fine amp doesn't go to protect mode still works 4 guage wire a


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. Hopefully you have warranty D.A thumbs up would be greatly appreciated if this answer is helpful to you. nitro-bmw-486-cuts-out-when-turn-volume-lv2kkrmxrai4iihdvw4m3np2-1-0.jpg

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When i turn my volume up to a certain point the power light on my amp will blink off and on and the subs will cut off...what could be some possible solutions? is the amp not suppose to be tuned up? it...


Sounds like you are showing too low of an impedance load to the amp. The E1200 is only stable as low as 2 ohms. If your subs are wired to show lower than a 2 ohm load then the amp will go into protection mode as the volume or gains are turned up

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Jl 1000/1 cuts out


Hello, It sounds like you may have a problem with one of your subs. If this problem was not happening before that's what I would suspect. You need to check the ohms of both subs seperately, make sure you don't have a half blown sub. Second you need to test the voltage going into the amp while playing at a decent volume to see if there is a major drop in voltage. Also, check your ground. You'd be surprised at the many people who bring there cars to my shop with similar problems and turns out the ground was bad or loose. I would doubt there is something wrong internaly with your amp. The problem lies in the wiring or speakers. As you said it only started doing this after 3 or 4 months after it was installed. It's cutting off at high volumes cause it can't draw the power it needs at the higher volume, so make sure you check all your wiring good. Let me know what you find, I would like to be able to help you more if for some reason you can't figure it out. I own a shop and also do amplifire repair. Hope this helps.

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Have power but no sound


U may have blown the High Out put.


Not sure but is the Protection Led light on the AMP. if it has one it should be green if everything is Fine. Red or Flashing Red is not good.

U can test it has a low in out put . But if only has RCA out then u may want check the Fuses inside the AMP... Be careful because if u open it up after it was just turn on u will get a ZAP if the amp is not fully discharged.Look for any burnt Resistors etc,

Let me know if this works!!
Thank U Jayson
Please feel free to rate my suggestions.
we depend on your votes!!!

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Most likely one of your subs are blown, or the Ohm's are too low for the ampliphier. Try hooking up one speaker at a time to the amp and see if it does the same thing. If it shuts off on one of the two speakers, that speaker is most likely blown.

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Amp not functioning right


Check the wires for a lose connection or corrosion. You may need a capacitor.

Basically, at low power the amplifier is not asking for a lot of power from the electrical system to power your sub woofer. For lack of a better term and probably the best way to explain it is. It uses up all the power in the wires leading to it at a high volume, and has to wait for more. Kind of like when someone squeezes a garden hose2_bing.gif when your trying to use it. That would be the high volume, starving the amplifier. The capacitor stores power in it to power the amp at high volume. 2 farads would probably be bulletproof on a single amplifier system, but 1 farad should work well enough. Or seek help from an expert on exactly what size capacitor you should use. If you find yourself saying: My amp cuts out.

If this assisted in solving your problem, please take the time to rate it. Thank you.

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a loose or corroded connection can cause this problem...do not overlook possible loose fuse holder...also look into remote control line...also check speaker line for a loose or shorted connection...a loose connection in any of these locations can cause a spike in the current drawn from the power supply... a bad speaker can play at low volume but short at high volume; if the flex wires from frame to cone on the speaker start to fail, it happens at high volume first, and sounds like a crackle, and gradually becomes present at lower levels; a voice coil can warp at high signal levels, causing it to short intermittently, in addition, you might check the cooling capability of the amp...i don't recall whether you have a fan on this amp...

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your amp its protect by releas of [powerout]one this releys is dead you mast chenche

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