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Ground Zero RADIOACTIVE Series - User Manual

Ground Zero RADIOACTIVE Series
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RADIOACTIVE-SERIES
AMPLIFIER
OWNER’S MANUAL
GZRA 1.1650DX
Features
1 Ohm stable
Linkable 2 Ohm
Mosfet power supply
Power and protection indicator
Variable 12dB Bass boost (45Hz)
Phaseshift 0 / 180° (Switch)
Variable Subsonic
Variable Lowpass
Adjustable input sensitivity
Soft delayed remote turn on
Stereo RCA output
Bass remote control
Thermal / Short / Overload protection

Questions and Answers

  • D
    David MatthewsAug 17, 2025
    Why does my Ground Zero Amplifier turn off at medium or high volume?
    • J
      John FaulknerAug 17, 2025
      Your Ground Zero Amplifier might be turning off at medium or high volumes due to speaker load impedance issues. 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.
  • M
    Marcia BrownAug 19, 2025
    Why does my Ground Zero RADIOACTIVE turn off at medium/high volume?
    • M
      mary50Aug 19, 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 ohmmeter.
  • H
    Heather WheelerAug 22, 2025
    What to do if my Ground Zero RADIOACTIVE turns off at medium or high volume?
    • M
      Michele MarshAug 23, 2025
      If your Ground Zero Amplifier is turning off when the volume is at a medium or high level, check the speaker load impedance. Make sure the nominal load impedance at the amplifier is equal to or greater than 2 ohms.
  • M
    Michael RiceAug 26, 2025
    What to do if my Ground Zero RADIOACTIVE Amplifier has no sound?
    • L
      Lisa CoxAug 26, 2025
      If your Ground Zero Amplifier isn't producing any sound, first check if the POWER LED is illuminated. If not, inspect the fuses in the amplifier, ensure the remote lead is connected, and verify both the +12 Volt and ground connections. If the diagnostic LED is lit, check for a speaker short or amplifier overheating.
  • R
    Robert GomezAug 28, 2025
    Why is my Ground Zero RADIOACTIVE not switching on?
    • L
      liyolandaAug 28, 2025
      If your Ground Zero Amplifier isn't turning on, the issue might be a lack of power. Check the power wire and its connections to ensure they are secure and functioning correctly. Also, verify that the remote wire is receiving power when the receiver is on; if not, check the connections to the radio.
  • C
    Catherine JuarezAug 31, 2025
    What to do if the Protection LED is on in my Ground Zero RADIOACTIVE Amplifier?
    • V
      Vicki LongAug 31, 2025
      If the Protection LED on your Ground Zero Amplifier is illuminated, it could indicate a temperature shutdown or a speaker wire short. Try turning down the radio volume. Also, inspect the speaker wires for any shorts and ensure they are separated and insulated properly.
  • J
    jonesevelynSep 2, 2025
    How to fix no sound in one channel of my Ground Zero RADIOACTIVE Amplifier?
    • T
      thomastimSep 2, 2025
      To troubleshoot the issue of having no sound in one channel of your Ground Zero Amplifier: * Inspect the speaker leads for any short circuits or open connections. * Check the audio leads by reversing the left and right RCA inputs to determine if the problem exists before the amplifier.
  • J
    Jonathan BlackwellSep 5, 2025
    How to troubleshoot no sound from Ground Zero RADIOACTIVE Amplifier?
    • R
      Ryan AcevedoSep 5, 2025
      If you are experiencing no sound from your Ground Zero Amplifier, here are a few things to check: * Verify the fuses in the amplifier. * Ensure the remote lead is properly connected. * Check the +12 Volt connection. * Confirm the ground connection is secure. Also, check for speaker shorts or amplifier overheating.
  • M
    Mark BarnettSep 8, 2025
    What to do if there is no sound in one channel of my Ground Zero Amplifier?
    • P
      Peter DunnSep 8, 2025
      If you're getting no sound in one channel of your Ground Zero Amplifier, inspect for a short circuit or an open connection. You can also reverse the left and right RCA inputs to determine if the issue is occurring before the amplifier.
  • P
    phillipsjoshuaSep 10, 2025
    Why is the Protection LED on my Ground Zero Amplifier lit?
    • J
      Joseph RomeroSep 12, 2025
      The Protection LED on your Ground Zero Amplifier may be on due to a temperature shutdown or shorted speaker wires. Try turning the radio volume down. Also, separate the speaker wires and ensure they are properly insulated.

Summary

Features

Power connection

Controls and functions

Speaker terminals

Connects the subwoofer to the amplifier's output terminals.

Power terminals

Connection points for Ground, Remote, and +12 Volt power supply.

Cinch inputs

RCA input terminals for connecting audio sources, recommending quality wires.

Turning on the amplifier

Adjusting the audio level

Specifications

Trouble shooting guide

Ground Zero RADIOACTIVE Series Specifications

General IconGeneral
BrandGround Zero
ModelRADIOACTIVE Series
CategoryAmplifier
LanguageEnglish

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