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Kicker ZX300.1 shuts off after long play at high volume

I can't figure out why the amp shuts off after long play music at a high volume and when i turn the stereo off for about 5 minutes then turn it back on the amp works again.I'm not sure if it's a bad ground or what it could be it's in my trunk of my car so i think it would have enough ventaltion of air to keep it from overheating.Any advice would help please.

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  • b4imbroke Mar 19, 2009

    I got the same problem with my Kicker Kx550.3. I'm running 4 gauge for the ground (which ran to the frame) and positive (which ran straight to the battery). I'm running 2 kicker 10inchs (4olm) speakers in series off the sub channel. I have a stock head unit and just recently purchased a Phoenix Gold line driver to make sure my amp is getting enough volts. The fan is working properly and the gain and bass boost is all the way down. As soon as turn up the gain the amp goes into this protective mode. The same goes for the bass boost. What am I doing wrong or whats up with these kicker amps?

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  • Master
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It's probably overheating and the thermal protection circuit is shutting the amp down.

If it has a fan, the fan may be defective. If I'm not mistaken, the fan only runs at high temperatures so if you check it, you need to do so when the bottom of the amp is almost too hot to touch.

If the fan is working properly, you may be driving too low of an ohm load.

If it's neither of those, get the amp up off of the mounting surface and use an external fan to move air across the bottom surface of the amp.

Posted on Oct 11, 2008

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