Question about Kenwood Excelon KAC-X541 88W x 4 Car Amplifier Car Audio Amplifier

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Amplifier stays in protect mode

Hello Ive got a little problem with my amplifier It was working fien but I think the plus cable touched the ground one and now the amplifier does not turn on unless I take the ground cable out of the amplifier the red protect light turns should go green.Could you tell me if the amplifier is dead or if there is a solution.Thank you.

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Re: Amplifier stays in protect mode

Hi I see your post was never answered and I doubt you still have this amp.. Many amplifiers are tossed in the trash due to this one little mistake! But for future use and I hope it helps: Install inline fuses on both polarities negative and positive, it is very important not to exceed twelve inches from your battery Reason: after this length resistance starts. to develop thus causing your amp to work harder and cause it to overheat and shut down and yes the red light will be on letting you know... Hey I'm a little warm after I cool off ill turn on again but I probably wont sound the same.... Thermal shutdowns,reverse polarity,low voltage,remote wire installed after ground wire all these mistakes cause the switching transistor to short out n throwing the amp in protect mode!! your local CB shop should be able to help you out next time I've been around amps since 16 yrs of age now I'm 37 and still trying to loose my hearing!! haha lol... hope this helps but remember always hook your positive cables remote, bat, mount amplifier, - batt , last the RCA cables...

Posted on Jun 02, 2012

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Re: Amplifier stays in protect mode

If the positive power cable touched the ground, the fuse inline should have blown. Did it?

Posted on Jan 15, 2009

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The red light indicates that your amplifier is in protect mode. Amps go into this mode if there is something wrong with the setup of the system to prevent fatal damage to the amplifier circuitry. This is bad thing since the amplifier will not function until the problem is solve and it can remove itself from protection mode.

Amplifiers can go into protect mode for many reasons but one of the most common is incorrect mounting. Is your amp sitting on the metal of your vehicle? Is it bolted down and screwed into the metal of the vehicle or your seat? The amp should never be touching any sort of metal. Only the ground should touching the metal of your vehicle.

Speaking of grounds, many people often neglect proper grounding which can cause an amp to go into protect mode. Do you have a solid ground? Is the wire less than 3 feet long and directly connected to a non-painted metal part of your vehicle? Is the ground wire the same gauge as your power wire?

These are just a few reasons why an amp can go into protect mode. You can find more information here. Or simply google for why your amp is in protect mode.

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The amplifier is in protection mode.
3 reasons for this...

  1. Improper Load/overheat - wrong impedence voicecoils or wired improperly below rated impedence.
  2. Grounded Power - speaker wires touching, power wire touching ground,
  3. Internal component failure.
if the amplifier will still not go out of protect mode after removing the speakers and jumpering the remote wire to the + terminal - your amplifier needs professional repair.

Thanks for using FixYa - a good rating is appreciated for taking the time to answer your FREE question.

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Check the speakers wires for a wrong connection,check the speakers maybe they are not support the power of the amplifier,good luck

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