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Amp when i turn the power level up on my amp i hear this noise from my subs like its pulling to much power when i hooked my system up i put a cumpaciter in to help the battery

Posted by felton barber on

  • smoothz Dec 27, 2007

    When I turn the gain level up it makes this distorted noise through the subwoofers.I can't turn the gain up at all!I have the lanzar vibe 286.

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  • 62 Answers

Pulling to much power? Do you mean clipping? When an amp is over powered (gains are to high) a amp will distort much like a deck destorts at high volumes and it will sound horrible. Make sure your setup is to within specificatons of the amp. (impediance and such)

Posted on Mar 25, 2007

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You must break it down through a process of eliminating items. With the system running unplug the RCAs from the amp. Do you still hear the noise? Try turning the gain down on the amp a bit and increasing the subwoofer level on the head unit instead. Make sure you have a low pass crossover set (probably below 80Hz).
Does the noise change with engine RPM?
Try a different RCA cable. I find that most times noise filters will make the problem worse not better. If none of the above things work, check that the grounds within the car are good, battery to frame, to engine block and chassis. Sometimes a bad vehicle ground is the cause. If all else fails, hook it up to someone else's system and see how it works.
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okay u will have to troubleshoo the amp.....dose the amp light up?...when u have the radio on? also check your sub wires.going to the amp....make sure the rca'sare hooked up to the radio rear out puts are the radio sub out puts...and then test your amp gain adjustment...let me know if that work's
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If you know how to use a multimeter, you can test the amp this way:

-unhook the subs
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-unhook the audio inputs
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What you are doing is sending a low voltage (replicating an audio signal) into the amp audio circuit and allowing the amp to amplify it. If the amp makes the speaker pop each time you strike the probe, the amp is working.

You mentioned you need a 4 channel amplifier make the two, dual voice coil subs operate. The is not true and by hooking them up like that, there's a chance of damaging the subs. The reason is that the dual voice coils are interwoven and they have to get electrically identical signals or they fight against each other. The can mechanically fail, then, electrically fail, then even damage the amp too.
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