Wiring Diagram Subwoofer: Everything You Need to Know

Subwoofers are an essential component of any car audio system that aims to reproduce accurate and realistic bass frequencies. To get the best performance from your subwoofer, you must understand how to wire it correctly. In this article, we’ll guide you through the process of wiring a subwoofer, including the different types of subwoofer wiring diagrams, how to read them, and how to choose the best wiring setup for your system.

What is a Subwoofer Wiring Diagram?

A subwoofer wiring diagram is a blueprint that shows the electrical connections between the subwoofer, amplifier, and other audio equipment in your car. Subwoofer wiring diagrams vary depending on the number and type of subwoofers, the impedance of the voice coils, and the desired level of resistance in the circuit. A wiring diagram shows the circuit flow from the source to the load and back to the source, indicating the connections, wire sizes, and colors.

Types of Subwoofer Wiring Diagrams

There are two main types of subwoofer wiring diagrams: series and parallel. The series wiring diagram connects the voice coils of multiple subwoofers in a series, while the parallel wiring diagram connects the voice coils in parallel. The series wiring configuration increases the impedance, while the parallel wiring decreases the impedance. The choice of wiring diagram depends on the desired level of resistance in the circuit and the number and type of subwoofers used.

How to Read a Subwoofer Wiring Diagram

Reading a subwoofer wiring diagram can be intimidating at first, but it’s essential to understand to ensure proper wiring and avoid damage to your audio equipment. The diagram usually has two parts: the circuit flow and the wire color codes. The circuit flow shows the path of the audio signal and the current flow, while the wire color codes indicate the wire colors and sizes used in the equipment. It’s important to follow the wire color codes to ensure the right connections.

Common Subwoofer Wiring Diagram Configurations

There are several common subwoofer wiring configurations that you can use to wire your subwoofers, depending on the number of subwoofers and their impedance. We’ll discuss some of the most popular configurations and their benefits and drawbacks.

Single Voice Coil Wiring Diagram (1 Subwoofer)

The single voice coil wiring diagram is the simplest wiring configuration, suitable for one subwoofer with a single voice coil. It involves connecting the positive and negative terminal of the subwoofer to the amplifier. This wiring configuration produces a 4-ohm load, which is suitable for most amplifiers.

Dual Voice Coil Wiring Diagram (1 Subwoofer)

The dual voice coil wiring diagram is similar to the single voice coil wiring diagram, but it involves a subwoofer with two voice coils. Each voice coil has a positive and a negative terminal, and you can connect them in parallel or series. Parallel wiring produces a 2-ohm load, while series wiring produces an 8-ohm load. The choice of wiring configuration depends on the amplifier’s impedance range and power handling capabilities.

Parallel Wiring Diagram (2 Subwoofers)

The parallel wiring diagram is suitable for two subwoofers with the same impedance and voice coil configuration. It involves connecting the positive terminal of each subwoofer to the positive terminal of the amplifier and the negative terminal of each subwoofer to the negative terminal of the amplifier. This wiring configuration produces a 2-ohm load, which is suitable for most amplifiers.

Series Wiring Diagram (2 Subwoofers)

The series wiring diagram connects two subwoofers in a series, which increases the overall impedance of the circuit. It involves connecting the positive terminal of one subwoofer to the amplifier’s positive terminal and the negative terminal of that subwoofer to the positive terminal of the other subwoofer. Lastly, connect the negative terminal of the second subwoofer to the amplifier’s negative terminal. This wiring configuration produces an 8-ohm load, which is suitable for some amplifiers.

FAQs

Question Answer
How do I determine the impedance of my subwoofers? You can find the impedance of your subwoofer by looking at the manufacturer’s specifications or measuring it with a multimeter.
Can I mix subwoofers with different impedances? You can connect subwoofers with different impedances, but it’s not recommended as it can affect the sound quality and damage your equipment.
What is the best wiring configuration for my system? The best wiring configuration depends on the number of subwoofers, their impedance and voice coil configuration, and the amplifier’s impedance range and power handling capabilities.
Do I need to use a fuse in my subwoofer wiring? Yes, it’s recommended to use a fuse in your subwoofer wiring to protect your equipment from electrical faults or short circuits.
Can I connect my subwoofer to the head unit? Yes, you can connect your subwoofer to the head unit, but it’s not recommended as the head unit may not have enough power to drive the subwoofer effectively.

Conclusion

Wiring a subwoofer can be confusing and overwhelming, but with the right knowledge and guidance, you can do it yourself and achieve excellent sound quality. In this article, we’ve discussed the different types of subwoofer wiring diagrams, how to read them, and some common wiring configurations. We’ve also answered some frequently asked questions to help you better understand what’s involved in wiring a subwoofer. Remember to always follow the manufacturer’s specifications and safety precautions when wiring your subwoofer, and have fun creating the perfect car audio system for you.