How to judge the sound quality of headphones
1.Frequency response
This parameter is one of the very important indicators to evaluate the quality of headphones. This parameter is not specific to have a numerical range, but to see the overall corresponding, for example, the whole sound of the earphone sounds good balance, timbre is never bright or dark, high and low frequency energy distribution is uniform, the fusion between frequency bands is natural smooth, no abruptness and burr.
2.Sensitivity and impedance
Earphone sensitivity refers to the sound pressure level that the earphone can produce when 1 milliwatt (mW) of power is applied to the earphone. The sound pressure level is measured in decibels (dB). The higher the sound pressure, the louder the sound. Impedance is the resistance to alternating current.Sensitivity and impedance should be looked at together. Simply speaking, the higher the sensitivity, the louder the sound will be, while the lower the impedance, the easier the headset will be driven.
3.Whether to listen
Good earphones, because the sound is very real and natural, just like the sound of nature in our daily life, people will not easily produce fatigue.There are a lot of standards to judge whether the earphone is good for listening, such as distortion, high-frequency stuffy, harsh, dizzy and so on are not good performance.
4.Analytical power is good
The analytical power of the headset is the ability of the headset to restore details to the sound.With good headphones, you can hear many details, such as the friction of hands and strings, the sound of human breathing, the touch of lips and teeth. It's like a singer singing in your ear.
5.The sense of presence is good
It's when you put your headphones on and you feel like you're there. Good earphones, will let you forget the existence of earplugs, Musical Instruments and voices from different directions transmitted, a strong sense of the scene.On the other hand, if you're constantly feeling like you're wearing headphones and the sound is coming from them, then they're just so-so.
6.Material and shape of earphone
In addition to the above factors, the material and shape of earphone will also affect the sound quality of earphone.The earphones on the market are mostly made of plastic and metal. In general, a plastic case is much cheaper than a metal case, but if the case is cut from all metal, the price can be quite high.
