What Is An Active Subwoofer?
An active subwoofer is a type of speaker that produces low-frequency sounds, commonly known as bass. It is called “active” because it has a built-in amplifier that powers the subwoofer. This is different from passive subwoofers that need an external amplifier to produce sound.
Active subwoofers are commonly used in home theaters, music studios, and car audio systems. They are preferred by many because they provide better sound quality and are easier to install compared to passive subwoofers.
Active Subwoofer Wiring Diagram
Before we delve into the actual wiring diagram, it is essential to understand the components of an active subwoofer. Generally, an active subwoofer has four inputs and outputs that include:
- Power input
- Audio input
- Audio output
- Speaker output
The power input is where you connect the power source to the subwoofer. The audio input is where you connect the audio source, and the audio output is where you connect the speakers.
The speaker output is where you connect the subwoofer to the speakers. Active subwoofers typically have built-in crossovers that separate the low-frequency sounds from the high-frequency sounds, allowing the subwoofer to focus solely on producing bass.
Here is an active subwoofer wiring diagram:
| Input/Output | Connector |
|---|---|
| Power Input | Power Connector |
| Audio Input | RCA Connector |
| Audio Output | RCA Connector |
| Speaker Output | Speaker Connector |
Power Input
The power input is where you connect the power source to the subwoofer. Usually, active subwoofers have a standard AC power cord that you plug into an electrical outlet. Make sure you have a stable power source that can provide enough power to the subwoofer.
Audio Input
The audio input is where you connect the audio source to the subwoofer. Typically, this is done using an RCA cable. The RCA cable is a two-channel cable that carries stereo sound. One end of the cable is plugged into the subwoofer, while the other end is plugged into the audio source.
The audio source could be a receiver, amplifier, or even a smartphone. Make sure you have the appropriate cables and adapters to connect the audio source to the subwoofer.
Audio Output
The audio output is where you connect the speakers to the subwoofer. The RCA cable is used to connect the subwoofer to the speakers. The subwoofer usually has a dedicated output that carries only the low-frequency sounds.
Make sure you have the appropriate cables and adapters to connect the subwoofer to the speakers.
Speaker Output
The speaker output is where you connect the subwoofer to the speakers. The subwoofer usually has a dedicated output that carries only the low-frequency sounds. Make sure you connect the subwoofer to the correct speakers.
Usually, the subwoofer is placed near the main speakers so that the bass sounds can blend with the other sounds. However, the location of the subwoofer depends on the room’s acoustics and personal preferences.
FAQ
What is the difference between an active and a passive subwoofer?
An active subwoofer has a built-in amplifier that powers the subwoofer, while a passive subwoofer needs an external amplifier to produce sound. Active subwoofers provide better sound quality and are easier to install compared to passive subwoofers.
What is a crossover, and why is it essential for subwoofers?
A crossover is an electronic circuit that separates the audio signals into two or more frequency ranges. For subwoofers, a crossover is used to separate the low-frequency sounds from the high-frequency sounds. The crossover sends only the low-frequency sounds to the subwoofer, allowing it to focus solely on producing bass.
How do I know if my subwoofer is getting enough power?
If your subwoofer is not getting enough power, it may produce distorted or weak sounds. You can check if your subwoofer is getting enough power by measuring the voltage across the power input. Make sure to consult the user manual or a professional if you are not sure about the appropriate voltage.
How do I connect my subwoofer to my car audio system?
To connect your subwoofer to your car audio system, follow these steps:
- Connect the subwoofer to the amplifier using RCA cables.
- Connect the amplifier to the car stereo’s power supply.
- Connect the subwoofer to the car’s battery using a power cable.
- Make sure all connections are secure and test the subwoofer.
Where should I place my subwoofer in the room?
The placement of the subwoofer depends on the room’s acoustics and personal preferences. Usually, the subwoofer is placed near the main speakers so that the bass sounds can blend with the other sounds. However, you can experiment with different locations to find the best placement for your subwoofer.
