Car Subwoofer Wiring Diagram: A Comprehensive Guide for Car Audio Enthusiasts

If you’re a music lover, then you know the importance of having a good car audio system. A subwoofer is an essential component of any car audio system, as it enhances the bass and provides a more immersive listening experience. But to install a subwoofer in your car, you need to know how to wire it properly.

In this article, we’ll provide a comprehensive guide on car subwoofer wiring diagrams. We’ll cover everything from the basics of subwoofer wiring to advanced techniques for tuning your car audio system. Whether you’re a beginner or an experienced car audio enthusiast, this article is for you. So, let’s get started.

What is a Car Subwoofer?

Before we dive into the wiring diagrams, let’s first define what a subwoofer is. A subwoofer is a speaker that is designed to reproduce low-frequency sounds, or bass. It is typically a large speaker, ranging from 8 to 18 inches in diameter, and is mounted in a specialized enclosure in the trunk or rear of the car.

Subwoofers come in different types, including component subwoofers, enclosed subwoofers, and powered subwoofers. Component subwoofers require an external amplifier to power them, while enclosed subwoofers come in a pre-designed box that is already optimized for maximum bass output. Powered subwoofers have a built-in amplifier, which makes them a popular choice for those who want an easy-to-install system.

Types of Subwoofers

There are two main types of subwoofers: single voice coil (SVC) and dual voice coil (DVC). A voice coil is the electrical conductor that moves the speaker cone back and forth, creating sound waves. SVC subwoofers have only one voice coil, while DVC subwoofers have two.

The advantage of DVC subwoofers is that they offer more wiring options, which allows for greater flexibility when it comes to configuring your car audio system.

Subwoofer Wiring Diagrams

Now that we’ve covered the basics of subwoofers, let’s move on to the wiring diagrams. There are different wiring configurations you can use to set up your subwoofers, depending on the number of subs, the type of subs, and the impedance (ohms) of the subs.

Single Subwoofer Wiring Diagram

If you only have one subwoofer, you can wire it in one of two ways: series or parallel. Series wiring involves connecting the positive terminal of the subwoofer to the positive terminal of the amplifier, and the negative terminal of the subwoofer to the negative terminal of the amplifier.

Parallel wiring involves connecting the positive terminal of the subwoofer to the positive terminal of the amplifier, and the negative terminal of the subwoofer to the negative terminal of the amplifier. The difference between series and parallel wiring is the total impedance of the subwoofer.

Here’s a diagram of a single subwoofer wired in series:

Positive Terminal Negative Terminal
Subwoofer Amplifier
Amplifier Subwoofer

And here’s a diagram of a single subwoofer wired in parallel:

Positive Terminal Negative Terminal
Subwoofer Subwoofer
Amplifier Amplifier

When wiring a single subwoofer, it’s important to match the impedance of the subwoofer to the amplifier. You can find the impedance rating of the subwoofer on the back of the speaker or in the user manual.

Multiple Subwoofer Wiring Diagrams

If you have more than one subwoofer, you can wire them in different configurations to achieve different outcomes. The most common configurations are series, parallel, and series-parallel.

Series wiring involves connecting the positive terminal of one subwoofer to the positive terminal of the next subwoofer, and so on, until you reach the amplifier. The negative terminals are connected in the same way.

Parallel wiring involves connecting the positive terminals of all the subwoofers to the positive terminal of the amplifier, and the negative terminals of all the subwoofers to the negative terminal of the amplifier.

Series-parallel wiring is a combination of both series and parallel wiring. In this configuration, you wire the subwoofers in series, but then connect the series pairs in parallel.

Here’s a diagram of two subwoofers wired in series:

Positive Terminal Negative Terminal
Subwoofer 1 Subwoofer 2
Amplifier Amplifier

Here’s a diagram of two subwoofers wired in parallel:

Positive Terminal Negative Terminal
Subwoofer 1 Subwoofer 2
Amplifier Amplifier

Here’s a diagram of two subwoofers wired in series-parallel:

Positive Terminal Negative Terminal
Subwoofer 1 Subwoofer 2
Amplifier Amplifier

FAQ

What is the difference between series and parallel wiring?

The difference between series and parallel wiring is the total impedance of the subwoofer. Series wiring increases the impedance, while parallel wiring decreases the impedance.

What is impedance?

Impedance is the measure of opposition to the flow of electrical current. In car audio systems, impedance is measured in ohms and determines how much power the amplifier can deliver to the subwoofer.

What is the best wiring configuration for multiple subwoofers?

The best wiring configuration for multiple subwoofers depends on the number of subs, the type of subs, and the impedance of the subs. Generally, a series-parallel wiring configuration provides the best balance between power output and sound quality.

Can I wire different types of subwoofers together?

Yes, you can wire different types of subwoofers together, but it’s important to match the impedance of each subwoofer to the amplifier. Mixing SVC and DVC subwoofers can be challenging, as they have different wiring options.

Do I need a specialized wiring kit for my subwoofer?

Yes, it’s recommended that you use a specialized wiring kit for your subwoofer. These kits include all the necessary components, such as wires, connectors, and fuses, to ensure proper wiring and prevent damage to your car audio system.

Conclusion

Hopefully, this guide has provided you with a comprehensive understanding of car subwoofer wiring diagrams. We’ve covered everything from the basics of subwoofers to advanced wiring configurations for multiple subs. Remember, proper wiring is essential for a good car audio system, so take the time to plan and execute your wiring carefully. Happy listening!