Question about Eclipse XA5000 Car Audio Amplifier

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Engine whine touched speaker wire to door and now have whine only when engine is running help

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You're hearing whine from the alternator as it charges the battery. You could reduce it by turning the input level down on the amp, or by adjusting the filter on the high end. You can also buy a whine filter kit.

One last thing... you may have blown one of the diodes in the Alternator itself when you shorted the speaker wire. It would still work and charge the battery, but would not be able to filter the whine like it should.

Hope that helps...

Geno

Posted on Mar 26, 2008

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My red light wont cut off


are they subs or door speakers? if they are subs, then speakers ohm load is too low for the amp. If they are speakers then again the ohm load is too low or one the speakers are blown are shorting out against the door. sometimes when mouting speakers in the door, the terminals are accidentally touching some metal inside the door.

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Tip

Car amplifier noise


Noise in Audio:
  • If noise is a "whine" that goes up and down with engine speed, confirm that Amplifier and any other source unit (Radio, EQ, X-over, etc) is properly grounded.
  • A "clicking" or "popping" noise at a rate that follows engine speed is generally induced by vehicles ignition system. Confirm that the vehicle is equipped with resistor plugs and plug wires. Or, ignition system may need service.
  • Speaker and input wires should not be routed next to the wired that interconnect lights and other accessories/equipment.
  • If above steps do not improve/clear noise interference, the system should be checked by a professional mobile audio installer.
If this tip in any way helped you please do not forget to rate it, thanks.

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1 Answer

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This sounds like alternator whine. Do you have the power and ground connected to your battery, or through the accessory power? Make sure the power and ground wires are sufficient size, and connected to your battery, and make sure you have the power wire fused no more than a foot or two from the battery. If it is only on the right channely, maybe this wire is getting feedback from another wire. Seperate the wires if this is the case.

Wires create magnetic fields, and if a speaker wire is next to a power wire or something, you will hear a noise, typically high pitched whining.

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Try isolating the rca cords away from the power cords-sometimes they pickup and transmit engine noise through the amps if they are too close together

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1 Answer

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Ok, if it only happens when the engine is running and the noise changes with the gas, that's alternator whine. Alternator whine is caused by the ambient noise in the voltage which is produced by the alternator. Alternators don't make DC current, they make AC current. The AC current is then converted to DC current and then sent to the rest of the car. The noise comes from an imperfect conversion from AC to DC. That noise travels down the power cable to the amp and causes noise in your speakers. This is often called "dirty power". Dirty power can be variations in voltage, inconsistent current, or noise within the voltage. One of the simplest ways to clean up noise in a car stereo system is to use capacitors. If you add a capacitor to your system just before the amplifier's power cable, it will help filter out the noise from the alternator. Start with 1/2 Farad or 1 Farad. That should be plenty to clean up the noise. The capacitors will also have a positive effect on your amplifier's thermal and sound performance, but you may not notice it.

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1 Answer

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Hello jon_jonmay,

Wiring 4 speakers to each of 2 channels, you will need to wire them series-parallel and run them at 4 ohms. If you wire all 4 parallel, the load will be 1 ohm and the amp is only stable down to 2 ohms.

According to your manual, the 201s will deliver 50 watts into each channel at 4 ohms . So it will be supplying about 12.5 watts per speaker which is about what you get with the average factory radio. They will work OK, but they're not going to be very loud.

Hope this helps.

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Hi Justin,
Send me the specs. on the speaker ( voice coil impedance), amp, power wire size, and box
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Oh, and you will have to pull the head unit out of the dash... P

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1 Answer

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The shield ground is probably open in the head unit. You can check the shield ground by measuring the resistance from the shield of the RCA connector to the chassis of the head unit. It should be near 0 ohms. Disconnect all RCA cables from the head unit before testing.

If you find that the shield ground is indeed open, the following link has more information for a temporary fix.
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