An active subwoofer is a self-powered speaker designed to reproduce low-frequency sounds (bass). Unlike passive subwoofers, active subwoofers have their own built-in amplifier, which means they don't require an external amplifier to function.
Key Features of Active Subwoofers:
- Built-in Amplifier: Active subwoofers have a dedicated amplifier that powers the speaker driver, allowing them to produce powerful bass without relying on an external amplifier.
- Frequency Response: They are specifically designed to reproduce low frequencies, typically ranging from 20Hz to 150Hz, depending on the model.
- Crossover Settings: Most active subwoofers have adjustable crossover settings, allowing you to control the frequency range that the subwoofer handles.
- Phase Controls: Some models offer phase controls to adjust the timing of the bass signal, ensuring a smooth and seamless integration with other speakers.
- Inputs and Outputs: Active subwoofers typically have input connections for line-level signals (RCA or XLR) and output connections for connecting to other speakers or receivers.
Advantages of Active Subwoofers:
- Convenience: Active subwoofers are easy to set up and use, as they don't require an external amplifier.
- Power: The built-in amplifier provides more power and control over the bass frequencies.
- Portability: Active subwoofers are often more compact and portable than passive subwoofers, due to the integrated amplifier.
Examples of Active Subwoofers:
- SVS PB-1000 Pro: A popular choice for home theater systems, known for its powerful bass and adjustable settings.
- Klipsch R-112SW: A compact and affordable active subwoofer with a sleek design.
- JL Audio Fathom f113v2: A high-end subwoofer for audiophiles, delivering exceptional sound quality and performance.
Active subwoofers are a popular choice for home theaters, music listening, and car audio systems. They provide a powerful and accurate bass experience, enhancing the overall sound quality of any audio system.
