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

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My kicker kx 1200.1 keep clicking to protection mode back and forth when it power. There is a clicking sound comming from the amp...is it a major problem to fix? This just start happening when i was listen to music in the car (normal volume) and all the sudden the bass stop and it just comes on back and forth just like the amp.

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Look for a frayed speaker wires. Look everywhere. Start where you can see and then look under carpet, under seats, trunk and everywhere wires go throgh a hole in steel frame. Any minor connection between the two speaker wires will cause high-power systems to go into protection mode. Wires can be damaged by long-term vibrations of your car, people stepping on badly placed wires under carpet, moving seats (when adjusted) or even rodents bitting on the wiring. Look closely and you will normally find it. Also look closely where you connect your speaker wires to the amp. One small strand of wire jumping across to another terminal will cause a short and cause protection mode.

Posted on Nov 19, 2009

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Recheck amp to speaker wiring.....normally, protection mode means that there is a short circuit (fault) on the output to speakers. Try to find it quick, before it stops coming back at all.

Posted on Nov 19, 2009

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Thankyou for the detailed fault description..it really helps!

sounds like there is one of these 3 things wrong:

1. leaky or partially blown mosfets on ouput power stage of amplifier are leaking DC onto speaker output causing amp to go into protect..this explains any banging or clicking herd.

2. There has been damage to the internal SMPS and is going into protect because of an internal rail over-voltage/under-voltage.

or 3. you have a shorted speaker lead or sub that is bringing the amplifiers load down to less than 2 ohms..buy or obtain a multimeter and have a poke around and check all your speaker leads on the ohm setting anything lower than 1.6 ohms and you have a short...also make sure that you have correctly loaded amplifier to..alot of begginer audio enthusiats overlook this important step and cook amplifiers!!

remeber impendance ratings, have a look on google, search "impendance formulas" and study up if your unsure!

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