Kicker Zx650.4 amp issue

Cornbreadxd
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Ok so I had my amp for about 3 years and all of a sudden it's being a duckhead It has this blinking red light for a protection mode or something and I don't know what the issue is.

I checked the fuses and they aren't blown, I swapped the wires from my Autotek amp for my sub into the Kicker thinking maybe something was up with the wires because the autotek is fine but that didn't change anything. I used the multimeter on it and it's getting voltage 14v but its dipping to like 12ish when the light comes on then goes back to 14v. I checked the RCA's by removing the wiring and pluggin everything into my 4 channel audiopipe amp and I had sound again so I think something is up with the Kicker.

Anyone have any idea what the issue could be and how I can go about getting my audio back, it stinks listening to bass tones.

http://www.kicker.com/sites/default/files/2008%20ZX%20350%20650%20850-4%20d01%20web.pdf

 
have you checked to see if there is a volatge drop when other amps are not connected? could be that its dropping voltage so low its going into protect...just a thought

 
well when I tested it I didn't have the other amp connected, I also just tried to hook it up in my truck and its doing the same thing????? what the heck is going on?

 
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Cornbreadxd

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