Classification of earphones
1. According to the working principle
There are mainly two categories of dynamic earphones and electrostatic earphones. Although there are several kinds of equimagnetic earphones in addition to these two categories, they have either been eliminated or used for professional purposes with a small market share, which will not be discussed here.
Dynamic earphones: At present, most earphones (more than 99%) belong to this category. The principle is similar to that of ordinary speakers. The coil in the permanent magnetic field is connected to the diaphragm, and the coil drives the diaphragm to make sound under the drive of signal current.
Electrostatic earphones: The diaphragm is in a changing electric field. The diaphragm is extremely thin and accurate to several microns (at present, the diaphragm of STAX's new generation of electrostatic earphones is accurate to 1.35 microns). The coil drives the diaphragm to make sound under the driving force of the electric field.
2: By openness
Mainly open, semi open and closed (closed)
Open earphones generally have a natural listening sense and are comfortable to wear. The HIFI earphones commonly used for home appreciation can leak sound, and conversely, external sounds can also be heard. The earphones have less pressure on the ears.
Semi open type: there is no strict regulation. The sound can only enter or exit without entering, and the corresponding adjustment can be made according to the needs.
Closed type: earmuffs compress the ears greatly to prevent the sound from coming in and out, and the sound is well positioned. This kind of earphones is common in the field of professional monitoring. However, this kind of earphones has a disadvantage that the bass is seriously stained, and the W100 is an obvious example.
3: By use
It is mainly used for home, portable, monitor, mix, and binary recording.
