Clean, bare chassis metal is the best solution. In almost every case you will simply need to find a better ground location for that component. If the noise returns then it is a head unit problem. If the noise is gone then your problem is the intermediate components. First, connect the head unit RCA cables directly to the amplifier (assuming you have crossovers or equalizers between the two). If the noise is gone then you need to check the other components upstream of the amp. This also eliminates any noise from components upstream of the amplifier such as crossovers and equalizers. You can usually isolate the head unit as the problem by disconnecting the RCA cables from the amplifier and inserting a muting plug (RCA plug with the connectors shorted together). It's usually cured by finding the source of the noise entrance and re-grounding that component. Basically any component that touches the low level music signal (from RCA cables). The main culprits are the amp, the head unit and any intermediate components such as crossovers and equalizers. It's usually caused by a ground connection that is less than ideal. Alternator whine is caused by a difference in electrical potential (voltage) between two points. The biggest offender of noise in the car audio environment is alternator whine.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |