How Does a Capacitor Work with Subs?
How to Know When to Use a Capacitor Car audio systems get their power from the car’s electrical system, specifically from the alternator of the car, which is the generator that provides power to all the electrical equipment in the vehicle–from the spark plugs to the headlights. In a high-powered car audio system, the alternator may not be able to keep up with demand when the car’s amplifier draws extra voltage. This extra voltage is most often required when the amplifier is powering a subwoofer. These large speakers require a great deal of power to operate at loud volumes, placing strain upon the electrical system. A common symptom of an alternator that can’t keep up is the dimming of headlights in conjunction with loud bass notes from the subwoofer. If this happens in your vehicle, a capacitor is a good solution. How a Capacitor is Put into the Audio System The capacitor is placed in the power line that leads from the battery of the car to the amplifier. The capacitor is placed in-li
