Ground Zero GZPA 1.8K-HCX User Manual (English)

Questions and Answers:

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Jared MckenzieAug 11, 2025
Why is there no sound coming from my Ground Zero GZPA 1.8K-HCX Amplifier?
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  Brian GrantAug 11, 2025
  If your Ground Zero Amplifier has no sound, there could be several reasons. First, check the amplifier's fuses, ensure the remote lead is properly connected, and inspect the signal leads. Also, verify the control settings and the volume level on your tuner/deck. Another potential cause is a speaker short or amplifier overheating, so inspect these components as well.
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Shelly JonesAug 17, 2025
What to do if my Ground Zero Amplifier is not switching on?
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  Taylor FarleyAug 17, 2025
  If your Ground Zero Amplifier isn't turning on, the issue might be related to power. First, check the power wire and its connections to ensure the amplifier is receiving power. Also, verify the remote wire connection to the radio to ensure it's providing power when the receiver is on.
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Dennis PhillipsAug 23, 2025
Why is the protection LED on my Ground Zero GZPA 1.8K-HCX Amplifier on?
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  Katherine HollandAug 23, 2025
  If the protection LED on your Ground Zero Amplifier is illuminated, it indicates a potential issue. This could be due to a temperature shutdown; try turning the radio volume down. It may also be caused by shorted speaker wires; in this case, separate the speaker wires and ensure they are properly insulated.
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daniel38Aug 29, 2025
How to fix no sound in one channel of my Ground Zero GZPA 1.8K-HCX Amplifier?
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  Holly JenkinsAug 29, 2025
  If you're experiencing no sound in one channel of your Ground Zero Amplifier, start by inspecting for a short circuit or an open connection. You can also reverse the left and right RCA inputs to determine if the problem originates before the amplifier.
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Ross WrightSep 4, 2025
What to do if my Ground Zero GZPA 1.8K-HCX is turning off at medium or high volume?
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  Derek BowersSep 4, 2025
  If your Ground Zero Amplifier is turning off at medium or high volume, ensure that you are observing the proper speaker load impedance recommendations. Keep in mind that DC resistance and AC impedance may differ when checking speaker resistance with an ohm meter.