Question about Kenwood KAC-X401M Car Audio Amplifier

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Kenwood excelon kacx401m

When i power the amp it plays for about 1 second and then the power indicator starts to flash, and there is no sound. can u tell me what the problem is. it's also missing the power slide door, could this be the problem? it worked when i first hooked it up but now it cuts out immediately. any info would be greatly appreciated

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  • robforsure Jan 31, 2008

    ya i know what you mean im having the same problem with mine it will turn on for like 10 secs and it will bump the hell out of my car and then shut off



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Actually i have the same amp and the power connector was bad and was blowing fuses. It was a bad solder joint. I took it apart and gooped it up with more solder and now it works like a champ. I tested the resistance on the connectors and the power cable had more than the rest. Not sure if this is the same problem you are having but it worked for me.

Posted on Oct 12, 2008

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Sounds like an overload, amp switches on, can't get enough juice and switches off. Get a friend with a volt meter to measure the voltage at the amp power terminal as you turn it on, if it drops below 10.5v the amp hasn't got enough juice. Some amps can cut out before the fuse blows, so you never know it's an overload. I'm not sure what you mean by a 'power slide door'

Posted on Apr 24, 2007


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