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Orion 12000 I have a orion 12 d amp hooked up in my car. All of a sudden the sound stop coming out of my speakers. I have 12 volts to the amp. the amp lights come on and no sound. If i tag 12volts to the positive speaker wire at amp the sound comes back and last for about 6 hrs. any ideas

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  • Anonymous Nov 08, 2008

    I have a blitz audio 2500 watt amp. My remote fried yesterday causing my protect light to come on. Took it out and its been working fine. On my way home from work today the sub got really loud and then cut off. You can tap the amp and it thumps a power surge through my sub. (Serwin Vega 15" 1000 watt). Im stumped.

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The speaker out let on back of speaker box went bad and burnt the circuits in the amp

Posted on Mar 20, 2008

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When car is hooked up I get visuals, lights. etc. but no sound transmits from the stereo to speakers. I have checked all speaker connections and RCA jacks, along w/ amp and subwoofer and all are connected...


The illumination wires (orange, not yellow. Yellow is for 12 volt in) would not have an effect on sound. Either the internal amp is blown or you have a shorted speaker which is preventing the internal amp from turning on. Disconnect all speakers and hook a KNOWN GOOD one to an output. I f you get sound, the problem is in the car, if not, the problem is in the radio. If you accidentally crossed two of the speaker wires or let one touch a chassis ground, you blew the amp.

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My amp keeps going into some safe mode and red light blinks and stops base to my sub. I have it hooked up to 1 15.4 Orion HCCA.


The "safe mode" on your amp usually kicks in for two reasons - the ohm load on the sub is too low for the amp (presenting a "short" to the amp), or it's going into thermal protection because the amp is too hot. From your description, it sounds like there's a short in the wire, the sub's ohm load is too low, or the sub is partially blown.

If you have another sub or speaker, connect it to the amp's output and see if the amp still goes into protection mode. If the amp goes into protection with a known-good speaker, then there may be something wrong with the amp's power supplies. If the amp works properly with another speaker or sub, then I would check the sub that's causing it to short out.

You may also want to check whether or not the amp is over heating by just touching the amp when it goes into protection. If it's just warm, that should be ok - if it's hot, then it might be working too hard. In this case, you may need to check the input voltage (12-14VDC) and the size of the power and ground cables. If your ground isn't properly connected, it can cause weird problems like over heating, shorts, erratic behavior, etc...

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Hello icpdownie,

A grounded or shorted RCA cable could be the problem. Try replacing the RCA's.

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Try running the amp without the speaker wires hooked up. See if the light is still on. If it is still on, the disconnect all power to amp for 12 hours. This should reset the amp. Then try again without and then with the speakers. This should fix the problem. If the light is still on, that means a capacitor inside could have overheated and fried the output.

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With your multimeter set to DC volts, the black meter probe on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red probe alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

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If the amp is going into protect mode, it probably has shorted output transistors. To eliminate other possible problems, do the following.

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

If the voltage remains near or above 12v, disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp almost certainly has shorted output transistors and will need to be repaired.

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1st make sure your amp is coming on. Use another speaker that you have heard play to test it.
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It sounds like your amp chip has gone bad, here is some thing you can try turn on your unit then start tapping on top of with your finger not hard see if the any of the pops matches your finger taps some times when the chip starts to go out it well act like that.

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