An excellent earphone that allows you to [discover" the unpopular songs that you don`t really want to hear. [It`s not bad." Because you can hear the details, so there are more feelings. If the earphone can reduce noise, it will give you a good environment to listen attentively and quietly. It will also enable you to "hear" and "feel" more than usual.
Headset is a highly subjective product, the following is a brief introduction
Headset: from the structure is divided into open, ear-pressing, semi-open and closed.
Earplugs: The earbuds are the most common in-ear type, because the structure can guarantee higher sound quality, so the sound of the flat plug is much richer. The disadvantage is that it is too easy to produce the stethoscope effect - when the earphones are connected with the headphones Friction will produce very loud noise
Ear-hook: not recommended
Headphone parameters:
Impedance: The unit of headphone impedance is Ω. Generally speaking, the lower the impedance of the earphone, the higher the sensitivity, the easier it is to drive and the sound is easy to sound.
Low-impedance headphones emphasize the near-field, suitable for enjoying vocals or small instrumental music, full of vocals, strong density, smooth and delicate sound.
Sensitivity: The sound pressure level that can be emitted by the earphone when the input power of 1 mW is input to the earphone (the unit of sound pressure is decibel, the louder the sound pressure is, the higher the volume), so the higher the sensitivity, the smaller the impedance, the earphone The easier it is to sound, the easier it is to drive. By definition, sensitivity is the loudness of the sound, and the details of the music played back by the earphone depend mainly on the sound quality of the earphone, high-quality earphones, richer sound details and better layering. Inferior headphones, even with high sensitivity, the details of the sound are certainly not as high-end headphones as low sensitivity.
Frequency Response: The sensitivity value corresponding to the frequency is the frequency response. The image is the frequency response curve. The human hearing can reach the range of 20Hz-20000Hz. The mature earphone technology has reached this requirement. .
The myth about frequency response: it is generally believed that the wider the response frequency range of the headset, the wider the sound range it can represent. However, it is not true that the wider the sound range, the better, because the sound that you cannot hear actually has little influence on the sound quality.