As far as woofers are concerned, they can only be divided into alto or bass. In hivi 2.0, there are d 1080-4, h5 and so on. According to the size of the horn, the diameter of 12cm is 5 inches; The speaker must match the frequency divider power amplifier to make a good sound, and you can't just change one for another.

Extended data:

Bass horn principle:

The woofer consists of electromagnet, coil and horn membrane, which converts the frequency of current into sound. According to the principle of physics, when an electric current passes through a coil to generate an electromagnetic field, the direction of the magnetic field is the right-hand rule.

Suppose the speaker plays the key C, and its frequency is 256Hz, that is, it vibrates 256 times per second. The speaker outputs 256Hz alternating current, and the current changes 256 times per second, emitting a C-tone frequency. When the electric coil vibrates with the loudspeaker diaphragm, it pushes the surrounding air to vibrate and the loudspeaker produces sound.

However, because the sound that the human ear can hear is limited (20——20KHZ), the general speakers will set the program in this range.

Electromagnetic speakers are generally composed of power supply system (including magnet voice coil, that is, electric coil). Vibration system (including: sound film, that is, the elastic wave of the horn diaphragm dust cover) and support system (including: basin frame, etc. ). The working principle is the same as above. The process of energy conversion is from electric energy to magnetic energy, then from magnetic energy to mechanical energy, and then from machinery to sound.