Question about Kenwood KAC-8103D Car Audio Amplifier

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Amp Turns off after 30 seconds of song play.

Just got done hooking up my 1000 watt amp in my car and hooked up the sub. it played like 20-30 seconds through the fist song, then when i switched the song the amp went out. Continious problem. It would work again once i unhook the power cable and hook it back up for the 30 secs.

Solutions?

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Check your ground and make sure it is grounded to metal in your car with no paint. Also, make sure you are running 4 gauge power wire. Another possible cause could be that the ohm load is too low on the amp. Also, if your car battery drops below 10v it will send the amp into protection.

Posted on May 13, 2009

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Posted on Jan 02, 2017

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1 Answer

Amp Turns off after 30 seconds of song play


Since the unit recovers once it has powered down. I suspect that the internal protection circuit is kicking in. Check the wiring and be sure that there are no crossed wires anywhere. These amps are designed to work with 2 ohm loads and can take a direct short for a short period of time. If the wires appear ok, measure the speakers with an ohm meter. If the speakers are 4 ohm rated, they should measure just under 3 ohms with the meter, If they measure less than 2 ohms, there is a problem with the speakers.

Also, does the amp shutdown regardless of the volume level or just when played loud?

Thanks,
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