Speaker structure.Bar sound bar sales

　　What are the different characteristics of professional speakers with different speaker structure? How do we need speakers according to our actual needs? According to the cabinet structure, speakers can be divided into sealed speakers, inverted speakers, labyrinth speakers, and sound waves Tube speakers and multi-cavity resonant speakers, etc. The editor below will share with you the introduction to the basic uses of professional speakers. Welcome everyone to read and browse.

　　1. Closed Enclosure (ClosedEnclosure)

　　It is the simplest speaker system. It was proposed by FrederlCk in 1923 and consists of a speaker unit installed in a fully sealed box. It can completely isolate the front and rear radiated sound waves of the speaker, but due to the existence of the closed box, the rigidity of the resonance of the motion mass of the speaker is increased, and the lowest resonant frequency of the speaker is increased. The sound and color of the airtight speaker is a bit deep, but the bass analysis is good. When using ordinary hard folding ring speakers, in order to obtain satisfactory bass reproduction, a large cabinet with a large volume is required. Compliant speakers. Using the elastic effect of the compressed air quality enclosed in the box, although the speaker is installed in a smaller box, the air cushion behind the cone will exert a reaction force on the cone, so this small enclosed speaker is also called an air-cushioned speaker .

　　2. Bass-ReflexEnclosure (Bass-ReflexEnclosure)

　　Also known as AcoustlCalPhaseInverter (AcoustlCalPhaseInverter), it was invented by Thuras in 1930. In its load, there is a sound outlet opening on a panel of the box body. There are various opening positions and shapes, but most of the holes are also equipped with sound ducts. The relationship between the internal volume of the box and the sound duct hole, according to the principle of resonance, produces resonance at a certain frequency, which is called the x-resonance frequency. The sound waves radiated from the rear of the loudspeaker are inverted through the tube, and then radiated to the front from the sound outlet, and superimposed in the same phase with the sound waves radiated from the front of the loudspeaker. It can provide a wider bandwidth and higher sensitivity than the closed type. Distortion. Ideally, the lower limit of the low frequency playback frequency can be as much as 20% lower than the speaker resonance frequency. This type of speaker can reproduce rich bass with a smaller cabinet, and is currently the most widely used type.

　　3. Acoustic resistance speaker (AcoustlCresistanceEnclosure)

　　It is essentially a deformation of a phase-inverted speaker, which is filled with sound-absorbing material or structure in the sound outlet duct, which acts as a semi-closed box to control the phase inversion and buffer it to reduce the x-resonance frequency to broaden the bass replay Frequency band.

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