When it comes to car audio, more power equals more sound and vice versa. If you want your music to be big and loud with massive bass response, you’re going to need a big amplifier with a big subwoofer, and plenty of power to make it work.
How to plan your car audio electrical system wiring – Is the alternator big enough?
The burden of producing all that energy falls on the alternator. The alternator is the part of the engine that charges the battery and runs the electrical systems. Most factory alternators are not designed to handle loud, high-fidelity noise.
If you install a large, powerful amplifier without making the necessary power adjustments, the car will compensate by limiting the power of some of the car's electronics. This usually manifests itself in flickering dashboard lights, dimming headlights, and a weak bass response from the subwoofer.
The easiest solution is to keep the volume at a level that the alternator can handle. However, if you want a powerful sound to go with your powerful amplifier, you have a few options.
