Expert Service 1-877-289-7664 [Hours]
|Audio Capacitor Sizes|
|3 - 4.9 Farad|
Perhaps your headlights are dimming, or maybe you just decided to purchase a capacitor as a precautionary measure. Whatever the case, you have decided to purchase a power capacitor for your vehicle, and now you need to install it. Installing a car audio capacitor is fairly simple, but you should always take caution when handling wires and electrical systems.
Before you install a capacitor, you must charge it to prevent blowing fuses. Use a voltmeter along with a resistor to charge your audio capacitor. Once the voltmeter shows 12 volts, the power capacitor is charged. Now you can wire the capacitor in parallel with your car amplifier.
You should use 4-8 gauge wire depending on the size of your capacitor. A car audio capacitor has two terminals, positive and negative. Connect the positive terminal to both the amplifier’s and car battery’s positive terminal, and the negative terminal to the ground. Make sure you secure the ground wire to the vehicle’s metal chassis.
Where you mount the capacitor depends on your car. It should be in a safe location away from passengers. Many postulate that the capacitor should be mounted as close as possible to the amplifier to reduce the length of the wire. In theory, this will optimize performance by cutting down the distance it takes the current to travel, and potentially reduce losses. Another viewpoint advocates installing the capacitor to the component displaying a voltage shortage, such as the headlights. Either way, the idea is to hook up the capacitor to the amplifier terminals, the battery, or the distribution block.
To wire multiple capacitors, you can either wire both ground wires together by running one ground wire to each of the cap’s negative terminals. You may also ground each capacitor separately. Run the power wire through the amplifier’s positive terminal and to the battery’s positive terminal. Remember, only use the amount of capacitors you actually need. You may not need the largest capacitor on the market. To determine the size and number of capacitors that your sound system needs, calculate your amplifier’s wattage and convert it to farads.
Written By: Gary Brikowski
What gives Sonic the edge over the competition
We offer free shipping on thousands of popular items for our Continental US customers and discounted rates for international customers. With multiple warehouses across the US, most orders are delivered within 3 days!Learn More
We pride ourselves on offering the best products at the lowest prices. If you find an identical item on another website with a lower price, we will discount our price by 105% of the difference. Some restrictions apply.Learn More
Have a problem with your order and need to return an item? Our generous 60-day return policy allows you to return items for your money back. Should your product have a defect, we will exchange, issue store credit, or repair the product for the entire length of the warranty.Learn More
Our knowledgeable staff of industry professionals and certified installers is ready to help you pick the right product for your needs. We will help you with the setup, installation, and use of your new products.Learn More
We want your online shopping experience to be easy and convenient. In case you need to return an item, our customer friendly return policy makes it easy.
Have a problem with your order and need to return an item? Our generous 60-day return policy allows you to return items for your money back. Should your product have a defect, we will exchange, issue store credit, or repair the product for the entire length of the warranty. Learn More
That's right, 100% refund on complete, like new returns. Learn More
Let's face it, electronics break. We've got you covered for a full year. Learn More
Request a return, use our shipping label, and ship it back. Learn More
Each of our employees are true experts with real life experience and passion for the products. Our team is always committed to providing you with electronics you'll enjoy.
Always available to answer your questions
Our trained install professionals can tackle any install challenge
Browse our online library of educational resources to learn more about the items you are looking for. Our experts have developed many tools, written many articles, and numerous videos to help you find the best item for your needs.