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Earphone Headset Classification
- Jul 18, 2017 -

Earphone Headset classification

Some basics about headphones

Is a new week, do not know you have a small partner weekend out of happy waves? There are some friends for the headset, there are many basic things do not know.

First of all, is the classification of headphones, the principle of energy conversion classification is not to say, you can go to see our previous hair, very detailed there are many; according to the use of sub-mainly portable, home, monitor, mix,

Then there are some related parameters and sound quality terminology. Impedance is the sum of the resistance and the reactance on the vector (the resistance is the effect of the object on the current obstruction, the reactance is the effect of the capacitance and the inductance on the current); sensitivity, headphones can be input when the headphones enter 1 mW power Sound pressure level (the greater the sound pressure, the greater the volume, the unit is decibel); frequency response, the frequency corresponding to the sensitivity value is the frequency response. The sound, the sound, the sound of one of the basic attributes, such as violin, guitar is a different tone; sound dye, that is, a "rendering" of the sound, such as the sound of the sound, the sound of the sound, Sound equalizer, a variety of bass system, a variety of surround sound field adjustment; distortion, the device output, can not fully reproduce its input, resulting in waveform distortion or signal composition changes; dynamic, allowing the maximum information recorded with the smallest The ratio of information; transient response, equipment, music, the ability to follow the burst signal, transient response to a good device should be a signal to respond immediately, the signal stopped to stop, never dragging its feet. (Piano); signal to noise ratio, the useful components of the signal and the noise of the contrast, the higher the signal to noise ratio of the device that it produces less noise; air feeling used to express the treble open, or sound field in the instrument Between the interval of acoustical terms; low frequency extension, refers to the audio equipment can reproduce the minimum frequency. Is used to determine the level of sound in the sound system or speakers can be dive to the extent of the scale; bright, that highlights the 4kHz-8kHz high frequency band, when the harmonic is stronger than the fundamental. Bright itself and no problem, the scene of the concert are bright voice, the problem is bright to grasp the sense of proportion.

First of all, the national standard provides for the production of ordinary wire with the purity of copper must be greater than 99.7%, almost all of the wire on the market made of copper material; and copper is also the purity of the points, such as 4 ~ 8N ("N" English "NINE" abbreviation, 4N said the purity of 99.99%, 8N that the purity of 99.999999%, 5N, 6N, 7N the same representation). 6N copper wire has been the same as the price of sterling silver.

Common wire:

1. TPC (electrolytic copper): purity of 99.5%; low-end headphones on the market is basically used in this wire.

2. OFC (oxygen-free copper): purity of 99.995%; C-OFC (linear crystal oxygen-free copper or crystalline oxygen-free copper): purity of 99.995% or more; commonly known as 4N copper, is the lowest standard audio line, The headphones also use this.

3. OCC (single crystal oxygen-free copper): the highest purity, more than 99.996%; generally used in high-end headphones; it also has a nickname called high Fu Shuai line. The The

The higher the purity of copper, the better the conductivity, the smaller the transmission loss, the signal is less distorted, so the better the sound quality, so the market headset basically copper wire; copper sound more stable, More cordial. But the higher the purity (number of N), the more delicate the sound and bias in the high-frequency, low-frequency energy weakened, the feeling of feeling soft. Monocrystalline copper sound more thorough, pure, more details, not only has a solid material at the end of the copper material, but also has a silver material delicate and elegant, so loved by enthusiasts.