Question about Alpine MRD-M1005 Car Audio Amplifier

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Volt signal is coming on

I am having a problem with this amp when I hook the amp up and turn it on, it says VLT in the display window?? no bass comes out the sub or nothing? Does any one know anything about this????????

Posted by dee nice on

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Brian Neathery

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  • 156 Answers

According to the owner's manual, this indicates that the input voltage (power supply) is too high. Assuming that the amplifier isn't defective, this might indicate a problem with the vehicle's alternator. Does the problem also occur with the engine off? Use a volt-meter and test the voltage at the amplifier's power terminals. With the engine running, you shouldn't see a voltage reading higher than 14.4 volts. If you see a significantly higher reading, it's time to have your vehicle's charging system checked. If the voltage is at 14.4 volts or lower, and the problem still occurs, then there's a defect in the amplifier.

Posted on Jul 02, 2007

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