A high amp alternator is built to deliver more current than the factory unit, typically 200 amps and up, with output held at idle as well as at speed. If your car audio system dims the lights, drops voltage under bass, or kills stock alternators, this is the fix. This...
A car audio alternator upgrade is the fix for the most common electrical problems in big builds: dimming headlights, voltage sag under bass, and amplifiers that drop into protect mode. The stock alternator was sized for the car, not for your system. This guide covers...