Possible Voltage Drop Problem???

[NITR0U5]

I recently just purchased a JL Audio JX1000.1D amp to run my Sundown Audio SA-12 because I wanted more power, the problem is when I turn the bass up the amp goes into protect mode after a minute or two. I only have the gain up a third of the way so I dont understand why this is happening. Before this I had an MB quart 600 watt rms amp and I would have the gain up all the way without any issues. My stock alternator puts out 160amps and I dont have any other amplifers installed. I also have already done the big three with 4 gauge wire

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[wew lad 5,000+ posts]

I recently just purchased a JL Audio JX1000.1D amp to run my Sundown Audio SA-12 because I wanted more power, the problem is when I turn the bass up the amp goes into protect mode after a minute or two. I only have the gain up a third of the way so I dont understand why this is happening. Before this I had an MB quart 600 watt rms amp and I would have the gain up all the way without any issues. My stock alternator puts out 160amps and I dont have any other amplifers installed. I also have already done the big three with 4 gauge wire

put a multimeter on the amp positive terminal and negative terminal on DC volts and run the system until it protects, tell us what the voltage looks like

 

[adulbrich 5,000+ posts]

Also, how did you set your gains? What method did you use?

 

[Forcefed2002]

Same Amp Same problem.

I feel like it's the lower voltage operating limit