Question about Power Acoustik LT-980/2 Car Audio Amplifier

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Amp i have a good ground, i get a spark when i hook up the power, but my green power light doesn't come on and my subs arent running. im all worn out from troubleshooting. i desperately need your advice. please help. dustin

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Re: amp

Hey, I have this same amp and had almost the same problem. Had it connected properly and was constantly getting the red protect light. Sometimes when it was switched on it would turn green then immediately go to red. I checked everything and tried everything I could think of. I am a corporate jet mechanic and know my way around electricity very well, and I was sure we had this thing connected correctly. Then out of desperation I tried running a wire from the battery neg term to the amp ground terminal, and presto it worked. Turned out the ground I was using was not good, even though I could see it was connected to the chassis, it still wasn't getting a good ground. Reconnected it to a different ground and it is working great now. It needs a really good ground.

Hope this helps someone...RC

Posted on Jan 10, 2008

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Re: amp

Sisnce you didn't mention the protection LED, I'll assume it's not on.

You need to measure the voltage across the B+ and ground terminals of the amplifier to confirm that the voltage at the terminals is least 11 volts. Also check the voltage on the remote turn-on terminal. Place the black meter lead on the ground terminal of the amp and set the meter to DC volts.

Posted on Nov 07, 2007

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First of all Id like to state that Reality car amps arent the best quality amps on the market and they normally will burn out on you. From what you are telling me it looks like your sub outs are defective, the output signal from the car amplifier is dead usually due to weak or defective terminals or poor soldering by the manufacturer, very common with lower quality amps. My suggestion is to replace the amp with at least a mid grade amp like a sony xplod or pioneer amp , if money is an issue then you can have the outputs checked out , check the wiring and also make sure that your ground is solid and making good contact to the cars chassis otherwise you wont get sound. Check the Amp turn on cable which is the small blue wire and check that your radio has the amp turn on or subwoofer signal turned on. Let me know your status and Ill do my best to help you out.

Good luck,

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1 Answer

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If you followed the instructions correctly, then the amp must be defective. This is sort of simple.

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You have the power, the ground, the outputs to the speakers, and then the input.

Make sure that none of the speaker wires are somehow being grounded. Make sure that nothing is shorted that feeds the speakers.

Jerry G.

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try another sub if possible to see whats happening...You might want to check to see if you have a good ground to amp .make sure ground connector is not on top of paint..if it is scrape paint off from body and polish to bare metal.Then reattach ground wire..then retry..

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