Planet PC10F Planet 10 Farad Capacitor With Digital Voltage Display Blue Illumination

Wiring DiagramView larger What Is A Capacitor? A capacitor is a passive two terminal electrical component (a component that consumes but does not produce energy). In building a sound system for your car, you would want to use a capacitor for a couple of different reasons. Why Do I need One? The main reason a capacitor is recommended is for power reserve. The capacitor stores energy and releases it very quickly to the amplifier(s). How does this help? It’s very simple: Music is dynamic, no matter what type you listen to. The dynamics in musical content can very quickly transition from soft voices to thundering bass notes. These moments are where the benefit of having a capacitor is heard. The amplifier requires a constant amount of steady power to function efficiently and power the speakers. A capacitor will keep the power going to the amplifier consistent and stabilized, which means a better sounding system.