Question about Kicker KX Series 04KX1200.1 1200w RMS Monoblock Amplifier

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Protection light comes on went the amp is turn on and it stays on for four seconds and then the amp turn on

Protection light comes on before amp is turn on

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Disconnect any speaker from the amp then re-power. If it still goes into protection, your amp needs serviced. Shorted output transistors most likely. And check your Sub for shorts as well. If the voicecoil on the sub is burnt, it will short any amp. If you can use a meter, check the resistance on the sub. Hope this helps

Posted on Jun 03, 2009

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Posted on Jan 02, 2017

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I have a Lanzar 4000 watt amplifier hooked up to 2 12inch MA Audio subs. When I crank my car the green power light on the amplifier comes on, but after a second or two it changes to protection mode. I have...


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. Time to get an old school Opti Drive. .A thumbs up would be greatly appreciated if this answer is helpful to you. lanzar-4000-watt-amplifier-hooked-up-2-shonxoarcym4awy4zl1imx4o-2-0.jpg Lanzar

Jan 29, 2011 | Lanzar VIBE286 Car Audio Amplifier

1 Answer

Unit only stays on for 4 seconds then turns itself off.


This is a short or unstable ohm load. Remove all speaker wire connections to see if the amp will stay on.
If the problem goes away when disconnecting the speaker wires try this:
1) Check volume level on zone one and zone 2 if connected. If it is too high the amp will go into protect mode and shut off exactly as you described.
2) Make sure no wires are touching any other wire or the metal surface of the amp. This will cause a short and send the amp into protect mode.

Nov 21, 2009 | Denon AVR-1705 Receiver

1 Answer

Protection light come on before amp is turn on it stays on for four seconds and then the amp turns on


That's normal. It's just powering up. I have many amps that do that. The power section is powering up then sending the power to the amp section. No worries, your fine.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/mark_b53a7494531bf96d

Jun 06, 2009 | Kicker KX800.4 Car Audio Amplifier

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Changed speakers and now red protect light stays on? why?


the sub might have a short or is blown or the ohms are different

Mar 30, 2009 | Crunch PZi1000.1 Car Audio Amplifier

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Amp problem


could be one side of spk voice coil bad if they ar dualor rca problem

Mar 29, 2009 | Blaupunkt PCA465 Car Amp

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My amp stays in protection mode


Does it go into protect in the vehicle if you disconnect the speaker wires from the speaker terminals of the amp?


Nov 29, 2008 | Sony XM-2002GTR Car Audio Amplifier

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Protection light


double check the blue stereo input wire to amp is this a new amp if not speaker channels in amp might be blown

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Onkyo SR502 Shuts off by itself


It is not a blown fuse. Your baby is in its ***** throes! It is fubar. You have either a damaged power supply or blown output stages (since sounds horrible it is probably this).

Sep 17, 2017 | Onkyo TX-SR502 Receiver

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