If you have distortion coming from your car subwoofers that are installed into the trunk of your car, this can have an impact on the sound quality of the bass horribly wrong. This is because the bass will not sound deep and clear, it will sound muffled and crackly at high volumes on the headunit. Now what causes subwoofer distortion is basically a overstrong signal coming from some audio source in the system. This can be generated from the car stereo or the amplifier itself it totally depends on how you have tuned your car audio system. To get rid and fix subwoofer distortion from a clipped signal you should make use of these troubleshooting steps to tidy up the sound.
1) Turn down the bass booster setting on both the car stereo and the amplifier. This is in most cases unnecessary and all it does it overpower the signal. Turn this down all the way to 0 or off and it will give you more head room for you to turn up your car stereo higher without the bass distortion.
2) The gain control on your car amp could not be setup properly. If you have turned it all the way to the maximum level your probably going to think that you are going to get louder bass. Well thats not the case all it will do is increase subwoofer distortion. You need to tune the gain by slowing turning it up when music is playing and backing it down when you hear any kind of distortion playing from the subs.
3) You could be overpowering the subwoofer. If you are using a 1000 watt car amp on a 500 watt sub the voice coil and other mechanical soft parts will not be able to take that much power because it is not designed to handle it. You need to check the specs online for both the sub and car amp you are using to confirm whether you are overpowering the speaker.
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