What's wrong with my electrical system?

Josh Dubin

CarAudio.com Newbie
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So the issue I'm experiencing is that at louder volumes, my amp goes into protection mode. I did some troubleshooting and I assume it's because the voltage begins to dip pretty low to around 10-11 V, however, the voltage at the battery remains at ~14v, but no lower than high 13's when the system hits hard. What is the most likely culprit here? 

Thanks,

Josh

 
Last edited by a moderator:
wiring is faulty. faulty ground. or the wire gauge is insufficiant. use thicker wire (lower gauge number)

check every point of connection. especially make sure the ground to the vehicle has a good connection and your not running excessively long wire runs.

 
Mate, if you state you have correct AWG power wires to suit your amp, please check your Ground terminal, from battery all the way to your amplifier distribution block that attaches to the vehicle chassis, as this can get loose over time and cause issues.  Remember power travels from negative to positive hence the 12V negative ground theory! :veryhapp:

 
What is the appropriate way to do further tests? I'm using 4 gauge wire so that isn't the issue. Is there a way to use the multimeter to test if the amp's ground is sufficient? Could my battery be the issue or is not surely not the battery because the voltage at the battery stays around 14V? 

 
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Josh Dubin

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