How to Tune Car Audio?

[DiSteven]

Car audio tuning methods are as follows: 1. First, set all volume controls on the head unit to the center position, then increase the volume to 80%, and minimize the amplifier sensitivity; 2. Adjust the input gain of the electronic crossover to the middle position, open the amplifier input gain to about half, then increase the output sensitivity of the electronic crossover until the speaker produces distorted sound, and then reduce it slightly; 3. Turn off the midrange and treble of the front and rear channels, listen to the subwoofer alone, adjust the crossover to allow the subwoofer to operate naturally without mechanical noise or other resonance; 4. Add midrange and treble, adjust the ratio between midrange/treble and subwoofer, and reduce the volume of the rear channels; 5. Test the phase of the subwoofer by changing the subwoofer phase at low volume, i.e., reversing the positive and negative or using the selector switch on the electronic crossover, to determine which phase has greater volume as the correct phase; 6. Once all phases and frequency ranges are set, perform detailed adjustments. Generally, the subwoofer crossover point is set between 80Hz and 100Hz, while the high-pass crossover point for midrange/treble speakers is around 60Hz to 90Hz.