A subsonic filter, also known as an infrasonic filter, is an essential component in subwoofer setups. It plays a crucial role in protecting your subwoofer from damage and ensuring optimal sound quality. This article will delve into the significance of subsonic filters and their impact on subwoofer performance.
Understanding Subsonic Frequencies
Subsonic frequencies are those below the audible range of human hearing, typically below 20 Hz. While we cannot hear these frequencies, they can still be produced by musical instruments, particularly bass-heavy ones like drums and synthesizers. Subwoofers are designed to reproduce these low-frequency sounds, adding depth and impact to the audio experience.
The Importance of Subsonic Filters
Despite their ability to reproduce subsonic frequencies, subwoofers can be susceptible to damage when attempting to reproduce very low frequencies, especially at high volumes. These extreme low frequencies can cause the subwoofer’s cone to overextend, potentially leading to mechanical failure or distortion.
This is where the subsonic filter comes into play. By filtering out these extremely low frequencies, the subsonic filter safeguards the subwoofer from excessive excursion and potential damage. It prevents the subwoofer from attempting to reproduce frequencies that it cannot handle effectively, ensuring its longevity and optimal performance.
Enhancing Sound Quality
In addition to protecting the subwoofer, subsonic filters also contribute to improved sound quality. By eliminating unwanted subsonic frequencies, the filter prevents these inaudible sounds from muddying or distorting the overall audio output. This results in a cleaner, more defined bass response, allowing the subwoofer to focus on reproducing the audible low frequencies that enhance the listening experience.
Setting the Subsonic Filter
The ideal setting for a subsonic filter depends on the specific subwoofer and its enclosure type. Generally, a good starting point is to set the filter around 20 Hz, which is the lower limit of human hearing. However, it is advisable to consult the subwoofer manufacturer’s recommendations for the optimal setting.
Conclusion
Subsonic filters are indispensable components in subwoofer setups. They serve a dual purpose of protecting the subwoofer from damage and enhancing the overall sound quality. By effectively eliminating unwanted subsonic frequencies, these filters ensure that your subwoofer delivers powerful, distortion-free bass, while also extending its lifespan.
