What is a subwoofer?
A subwoofer, as the name suggests, is a speaker device specifically designed to reproduce low-frequency sound. It can bring us stunning bass effects, enhance the auditory experience, especially when enjoying movies and music.
The core components of a subwoofer: voice coil and frequency divider
The reason why a subwoofer can produce deep and powerful bass mainly depends on two key components: the voice coil and the frequency divider
Voice coil: the source of sound
Working principle: A voice coil is a coil wound around a magnetic core. When current passes through the voice coil, a magnetic field is generated, which interacts with the magnetic field of the magnetic core to produce electromagnetic force. This force drives the sound bowl to vibrate back and forth, thereby generating sound waves.
Function: The voice coil is a key component that converts electrical signals into sound signals. The material, diameter, number of turns, and other factors of the voice coil can affect the vibration amplitude and frequency response of the soundstage, directly determining the low-frequency performance of the subwoofer.
Frequency divider: the distributor of sound
Working principle: A frequency divider is an electronic component that divides the input audio signal into different frequency ranges, sending low-frequency signals to a subwoofer and medium to high-frequency signals to other speakers.
Function: The frequency divider ensures that each speaker is only responsible for reproducing a specific frequency range, thereby improving the purity of sound quality. For a subwoofer, a frequency divider can effectively filter out high-frequency signals, allowing the subwoofer to focus on reproducing low frequencies and achieve stronger bass effects.
The synergistic effect of voice coil and frequency divider
Voice coil and frequency divider are inseparable. The frequency divider sends the low-frequency signal to the voice coil, which then converts the electrical signal into an acoustic signal, producing bass. Only by combining the two can the subwoofer perform at its best.
summary
The voice coil and frequency divider of a subwoofer are two very important components that together determine the sound quality of the subwoofer. Understanding their principles and functions can help us better choose and use subwoofers, and enjoy a better listening experience.
Subwoofer voice coil accessories
