Its the ground wire. the exact same thing happened to me. I had it hooked to a bolt under my back seat in my chevy cavalier but then i moved it to a metal bar in my trunk and now it works
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Sounds like the power supply is shutting down because of it sensing a bad output channel. I'm assuming of course that you have checked all your battery, ground, and trigger wires to see if they are OK. Good luck.
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Just to the left of the output (speaker) terminals, near the top of the amp, there's an LED marked "POWER/PROTECTOR". If the amp is connected properly and powered on, the LED is ON.
If the amp is being used for normal speakers, use a pair of RCA cables and connect the left/right channels to the appropriate inputs on the amp. The switch marked "LPF" should be "OFF".
If the amp is being used with the channels bridged for a subwoofer, use an RCA "Y" adapter and connect the single "Sub Out" preamp output from the head unit to both amp inputs. The switch marked "LPF" should be "ON" and the crossover set to about 80-100Hz.
need repairs on the inside usually when u see that fuse melt something else probably melted on the inside. something is grounding out the amp on the inside . get it checked
First off, according to the manual, the protect light should be green. That's normal operation. If it is red, that's a problem.
If it does go red, disconnect all of the wiring to the amp except the +12V and ground. Short the remote connection to the +12V to force the amp on. If the protect light still lights red, the issue is inside the amp and will need repair. If the issue goes away, try reconnecting one wire at a time until the protect light goes red again.
it might be that your wires from your amp to your subs are too thin. since they were relatively new the first three months, they were probably undamaged, but after pushing them too much, they probably have broken wires, and can't get enough power to the subs when turned up, i suggest getting thicker wires before investing in a capacitor, it could save you money.
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