What is a subwoofer?
What is a subwoofer? A subwoofer, to be precise, is called a subwoofer. In the words of Meghan Trainor, the subwoofer is for bass and is used to make up for the lack of low-frequency experience of the main speakers.
Classification of subwoofers
1. According to whether there is a built-in amplifier:
One is an active (powered) subwoofer and the other is a passive (passive) subwoofer. Because the active subwoofer comes with its own power amplifier, the system is simple and easy to modify; the passive subwoofer requires an additional power amplifier, and the installation is more complicated. Compared with the sound effect, the active subwoofer performs better and is slightly more expensive.
2. According to box design：
Distinguished by box design, it can be roughly divided into low-frequency reflective design, bandpass design, transmission line design, etc. If distinguished by the direction of sound production, it can be divided into sounding toward the front, sounding toward the back, sounding toward the ground, sounding upward, and sounding toward the left and right sides.
As far as the audio environment is concerned, whether you are watching a movie or listening to a concert, subwoofer is needed and should be ensured. In one sentence: “Effective bass is the soul of the cinema!