How to Fix a Car Amplifier

How to Tune a car amp?


Understandung the wiring in your car audio system is crucial to good, clean bass. Run the positive cable on the opposite side of the car as your speaker and RCA patch cables. If not done correctly you might get severe ground noise (static/fuzz).

If your amp is blowing fuses, shorting frequently, or abnormally overheating it is commonly caused from an improper ground.

Correctly ground the amp! Make sure the ground location is excellent. Preferably directly to the car frame, not a flimsy peice of aluminum. Sand the surface, make good contact, yadda yadda yadda. A simple test is a to use a battery tester or a test light to assure 12.6 volts is running through the cables. But a true test is to use a multi-meter set to Ohms and connect one lead to your ground location and somehow connect the other lead directly to the Negative battery terminal, then subtract the natural resistance from the test leads/multimeter. Idealy the goal would be 0 ohms but that is near impossible, just do not allow more than 1 Ohm.
Also important is the guage of the cable. The chart provided is a useful reference tool. The length of the wire and the desired power of the system is taken into consideration.



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