• Time of issue:2022-03-20 18:02
• Categories:News
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(Summary description)What are the categories of earphones? Headphones are classified into dynamic coil type, dynamic iron type, coil iron mixed type, isomagnetic type, electrostatic type, electret, wireless cordless type, etc. They are classified according to the driver type and wearing mode. Dynamic earphone is an ordinary and common earphone. Its driver is basically a small dynamic loudspeaker. The voice coil in the permanent magnetic field drives the vibration of the diaphragm connected to it. Dynamic earphones have high efficiency, most of which can be driven by the earphone output on the audio system and are reliable and durable. Generally speaking, the larger the diameter of the driver unit, the better the performance of the headset. At present, the diameter of the driver unit in consumer earphones is 70mm, which is generally flagship earmuff earphones. Moving iron earphones are earphones that transmit to a point of a micro diaphragm through a connecting rod with precise structure, thus generating vibration and sound. The moving iron earphone can be easily put into the ear canal because the unit is much smaller. This method effectively reduces the area of the ear part and can be put into the deeper ear canal. The geometric structure of the ear canal is much simpler than that of the auricle. It is round, so a soft silicone sleeve can play a good role in sound insulation and sound leakage prevention compared with traditional earplugs. The coil iron earphone is a sound making earphone driven by the dynamic coil and dynamic iron. It has the structure of single dynamic coil+single dynamic coil and single dynamic coil+double dynamic iron. The advantages of the moving iron unit are high electroacoustic conversion efficiency and light vibrating body. Therefore, it has high sensitivity and good transient performance, highlighting the dynamic and instantaneous details of music that are difficult to show by the original dynamic coil. The low frequency and intermediate frequency are naturally presented by the moving coil unit, giving full play to the advantages of the good extension of the low frequency of the moving coil and the full and natural transition of the intermediate frequency. The advantages and functions of moving iron unit are mainly to undertake and supplement the high-frequency attenuation band of moving coil. Starting from the frequency division point of 6kHz, the moving iron unit is responsible for high frequency and extends the high frequency range to 30kHz. The driver of an isomagnetic earphone is similar to a reduced flat speaker. It embeds a flat voice coil into a thin diaphragm, which, like a printed circuit board, can evenly distribute the driving force. Magnets are concentrated on one or both sides of the diaphragm (push-pull type), and the diaphragm vibrates in the magnetic field formed by it. The diaphragm of an isomagnetic earphone is not as light as that of an electrostatic earphone, but has the same large vibration area and similar sound quality. It is not as efficient as a dynamic earphone and is not easy to drive.