General Knowledge of Headphone & Rules t

Strictly speaking, headphone is a listening gear with big FEC kaleida which requires to wear on the head, and it is not the earphone used for most of walkman. Your Show Time!! It is Bright for You to Choose First-Rate Dmozu Web Directory Transducer according to the principle of headphones can be divided into electro-dynamic (moving coil) and capacitance (electrostatic type) two broad categories. The principle of the electric type is to make coils in the magnetic field flow through currents, so that diaphragm will make sound. It is characterized by high sensitivity, stable sound and simpler structure and it can withstand higher power. Capacitive type headphone`s wireless circle, the diaphragm is generally used as the movable electrode. When add the signal on the diaphragm, it will get the sound for the attraction and repulsion vibration because of the change of signal polarity on the poles. Its feature is that it has a wide frequency band with excellent sound quality, but the structure is complicated with high price. * Why the headphones are good? First, the sound true is pure. Headphone's pronunciation unit does not need bigger power which often will not exceed 0.2W, so the signal from sound source does not need constantly amplifying circuit to keep the natural flavor of the voice. Thanks to the application of high-tech material recently, it is not difficult to regenerate the gamut. The frequency response standards of most relatively good headphones are better than 20-20KHZ and many superior ones even can reach 10-30KHZ and keep the degree of distortion lower than 0.2% which is rather difficult to achieve for most of the sound systems. Since headphones` diaphragm quality is small, transient features are also very good, and the control power is also strong, Unlike the speaker, it is affected by the movement of piston to reduce the sound quality. The headphones have high resolving power and large dynamic range and naturally pure voice. * The sound is full of room sense. Headphone sound field is spread from the center of the head to the forth, while the audio system`s sound field spread deeply in front of the listeners. Therefore, it is like sitting in the middle-front of the concert hall when wearing headphones, almost climbing to the position of the conductor. It seems that the whole body is immersed in music. This feeling is extraordinary! * Precise azimuthal sense. Since headphone has got only one pronouncing point, it can It can accurately restore and reappear the sound of various instruments While this is hard for sound systems. As is known to all that once the stereo is fixed, the acoustic position is fixed and you can walk about with headphones. You feel cool at the moment, right? Pay attention to a technical indicator in purchasing headphones - impedance. The impedance of middle-level or low level headphones is usually between 30 to 50 OHM, which can be directly inserted for the players and other devices, such as: VCD, LD, CD, DVD, CARD, radios, etc.. The dynamic impedance of high-end headphones is more than 300 OHM, which requires a dedicated headphone amplifier, such as: HD-580, the impedance of HD-600 is 300 OHM. After seeing my introduction above, have you had any crush on it? Action is better than excitement, and why don`t you buy one to have a try now? You even can not believe that the tone quality of your walkman is to be so incredibly improved with a different headphone.

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