How are headphones classified?

1. The simplest method of division can be divided into head-mounted and earplugs:

The head-mounted type is generally relatively large and has a certain weight, so it is not convenient to carry, but its expressiveness is very strong, which can enable you to enjoy the beauty of music in isolation from the world.

The earbud type is mainly easy to go out and listen to music because of its small size. Such headphones are mainly used for CD Walkman, MP3 player, and MD.

2. According to the principle of transducer (Transducer)

There are mainly two categories of dynamic and electrostatic earphones. Although there are several other types such as isomagnetic and electret earphones, they have either been eliminated or used in the professional market. The amount of possession is very small and will not be discussed here.

Moving coil earphones (also known as electric type): At present, most (about 99%) earphone earplugs belong to this category. The principle is similar to that of ordinary speakers. The coil in the permanent magnet field is connected to the diaphragm, and the coil is in the signal current Drive the diaphragm to make sound. Moving coil headphones are more efficient, and most of them can be driven by the headphone output on the audio.

Electrostatic earphones (also known as capacitive): the diaphragm is in a changing electric field, the diaphragm is extremely thin and accurate to a few microns (currently, the new generation of STAX's electrostatic earphone diaphragm is accurate to 1.35 microns), and the coil is in the electric field force. Drive the diaphragm to make sound. The sound pressure level that electrostatic earphones can reach is not as high as that of dynamic earphones, but it has a fast response speed and can reproduce various tiny details with extremely low distortion. Due to its precise structure, high requirements on materials, and mostly manual assembly and debugging, it is expensive.

electrostatic earphones:

There is also a dual-frequency earphone: a dual-frequency earphone is a dual-frequency earphone that integrates the advantages of both electric and capacitive types on the basis of semi-open earphones. It combines the advantages of four types of headphones: electric, capacitive, closed, and open. (This is a real "hybrid"). This kind of headphones is not only in terms of dynamic range, transient response, playback quality, The sound thickness and so on are all outstanding, and its sound analysis is accurate, which is the best choice for music enthusiasts.

Judging from the usage, generally speaking, electric earphones have the characteristics of simple structure, stable sound quality, and low price, which are suitable for ordinary people to choose, and can meet the general needs; capacitive earphones have good sound quality and wide frequency band, but Due to the complex process, the price is relatively high, suitable for enthusiasts to choose, its listening quality is quite good.

3. According to the degree of openness

Mainly open, semi-open, closed (closed)

Closed-back headphones wrap your ears with their own soft sound pads so that they are completely covered. These headphones are larger because of the large sound pad, but with the sound pad, they can be used in a noisy environment without being affected. The earmuffs put a lot of pressure on the ears to prevent the sound from entering and leaving, and the sound is positioned correctly and clearly. This type of earphone is often seen in the field of professional monitoring. However, this type of headphones has a disadvantage that the bass sound is seriously dyed, and the W100 is an obvious example.

Open-back headphones are the most popular style of headphones at present. This type of model is characterized by the use of sponge-like microcellular foamed plastic to make sound-transmitting ear pads. It is compact and comfortable to wear, and no heavy dyeing pads are used, so there is no sense of isolation from the outside world, and the sound can leak, and vice versa, the sound of the outside world can also be heard. If the earphone is open to a high degree, you can hear the sound from the unit on the other side, forming a certain mutual feedback, making the hearing feel natural. However, its low frequency loss is relatively large, and some people say that its low frequency is accurate. Open earphones generally have a natural sense of hearing and are comfortable to wear, and are commonly used in HIFI earphones for home enjoyment.

The semi-open earphone is a new type of earphone that combines the advantages of closed and open earphones (it is a hybrid, combining the advantages of the first two types of earphones and improving the deficiencies), this type of earphone adopts a multi-diaphragm structure , in addition to an active active diaphragm, there are multiple passive driven diaphragms. It has many characteristics such as rich and rich low-frequency description, bright and n