First, the frequency domain response is wide enough, and its width covers the human auditory limit area 20Hz~20KHz. This is a prerequisite for high fidelity. Only when the frequency response reaches this width, can the complete expression of the music band be possible;
The second is that the signal-to-noise ratio is high, at least not less than 100dB, otherwise, the feeling of listening to music in white noise, even if the faint white noise can be detected by the human ear, surely needless to say we all know what kind of Feeling that the signal-to-noise ratio is not higher than 100dB is certainly not enough for high quality Headphones ;
The third is high sensitivity, low impedance, headphones as a portable audio equipment, if the sensitivity is not high, high impedance requires the amplifier to drive it is not conducive to its portable features, the sensitivity is not high, then when used in conjunction with most common playback equipment, I am afraid There is a feeling of a small horse-drawn cart, and many weak signal components in the music are lost, including many details, which are detrimental to the layered and spatial sense of the reproduced music. Therefore, a good headphone sensitivity should be more than 110 dB, and the impedance is 64Ω
The fourth is that the transient response is good, which means that the headset has a good ability to restore the music from the low frequency to high frequency or the opposite short-lived sound, which requires the headset to signal processing speed is high and the internal circuit of the headset has to eliminate the mutation signal The oscillation problem caused by this, so that it will not be distorted when the transient response is lost or screaming or timbre is not true;
Fifth, the full-band resolution is strong, which means that the headset can clearly and truly restore various sound signals mixed in various frequency bands in the music, allowing people to clearly hear how many sounds are included in the music (not the number of sounds Clear, but each sound that can be clearly perceived to exist), and there is no obvious stickiness between various and various sounds, which is essential to restore rich details in music;
Sixth, the energy balance of each frequency band means that in a song, you can hear deep and thick low-frequency sounds. At the same time, the intermediate frequency is full, bright and warm, and the high frequency is fresh and bright, so that people do not feel a certain frequency band. Too fat, and a band too thin, wearing such a headset, you listen to the song is not easy to get tired.
Seventh, the ability to resist electromagnetic interference is strong. For instance, as mentioned above, under normal circumstances, a good headset (or its line of no more than 2 meters) will not be issued outside a distance of 0.5 meters from a mobile phone that is sending text messages. The buzz will not be significantly disturbed. These seven advantages can also be said that the seven indicators are the core indicators of a good headset.
Second, good headphones should also have a high level of comfort in terms of wearing comfort. The earphones are worn for wearing. The sound quality of a pair of headphones is no better. If you don't wear it comfortably, you won't win the favor of music lovers.
Once again, after achieving sound quality reduction and wearing high comfort, good headphones should also properly pursue the appearance of exquisite fashion. Even if the shape and color are not so avant-garde, at least it should be fine workmanship texture, I do not believe that truly high quality The earphone manufacturer will make his earphone appearance rough or even ugly, and anyone who understands music and understands the earphone will not believe it.
In summary, high-quality music headphones should be a personal portable audio device that combines high fidelity, high comfort and fine appearance.
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