1.ccording to use circumstance into professional speakers and household speaker, two kinds of speakers. Household speakers are commonly used household playback, its characteristic is soft, delicate tone playback is delicate and beautiful exterior, playback level of high power, not less. Professional speakers are commonly used ballroom, karaoke, cinemas, theaters, synagogue and sports venues such professional entertainment places. Generally, the sensitivity of the higher professional speakers, strength of high pressure release notes, inherit the power, compared with the sound box household, also not hard very delicate. But in the professional speaker, its performance and listening to speakers, household is delicate and cabinet is commonly, so this kind of surveillance speakers are often household HI-FI speaker system.

2.n playback frequency points can be divided into the band: the speakers, woofer and low sound speaker box. So-called the band speakers refers to low frequency and high frequency, covering the scope of playback speakers. The band of frequencies generally lower for speakers 30Hz - 60Hz, cap for 15KHz-20KHz frequency. In general the speaker system of medium or two on the only a band for playback speakers can completely. Bass speaker and low sound box is generally used to complement the band of low frequency and low frequency sound of special playback speakers. This kind of loudspeaker generally used in large and medium-sized speaker system, to strengthen the intensity and frequency playback.

3.he end-use for points: can generally be divided into ZhuFang speaker, monitor speaker and return to speaker. ZhuFang sound box commonly used the main speaker, sound system for major playback task. ZhuFang sound box performance of the sound system of playback quality, also can choose the band speakers and low sound box portfolio playback. Used to control and monitor speakers made use of surveillance program recording, it has the distortion, the frequency response of wide and flat, little modification properties, such as signal can be accurately recreate therefore most of the original program. Return to speakers say again stage surveillance speakers, usually in a stage for the actor or hall or members of the band played his voice singing or surveillance.

4.peakers structure to points can be divided into: sealed box, pour in speakers, labyrinth speakers, acoustic tubular speakers and more resonant cavity speakers. In the professional speaker with was in sound, its characteristic is the response, high efficiency, wide, with sound professional audio system, but because of the speakers, therefore, the low efficiency in professional sound less application, mainly used in household speakers, only a few of the monitor speakers adopts closed box structure. Sealed box with the design and debug simple frequency response is wide, the low-frequency transient characteristics as well as good, but the unit to dial the sound is higher requirements. At present, in all sorts of speakers, and sealed box in the speakers of other type, proportion of most of the various forms of structure, the speakers proportion but rarely.

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