All kinds of audio equipment available in the market, depending on the situation into the arena audio and other types. But when the speaker as an important part of the stage set up, no matter what kind, are by the speaker (the speaker unit called terms) and the two basic cabinet components, in addition, the vast majority of speakers used at least two or implementation of two or more multi-way speaker audio playback, so the divider is an essential part. Of course, the speakers may also have sound-absorbing cotton inner, inverted-phase tube, fold the pipe maze, enhanced disk, partition, etc. to strengthen other parts, but not any one of the speakers of these components are essential, integral element of sound is only the most basic three parts: the speaker, cabinet and crossover.
Why are some speakers use two speaker units, while others use the three, as well as with four, five of?
Speaker from the power unit - the role of acoustic energy conversion, the amplifier is converted to electrical signals sent audio output, is the most critical part of the speaker. Speaker of the performance indicators and quality performance to a great extent depends on the speaker's performance. Therefore, a prerequisite for a good speaker is the choice of high performance speaker. Performance requirements of the speaker unit summed up in carrying power, low distortion, wide frequency response, transient response, high sensitivity of these aspects, but in the 20Hz-20KHZ such a wide range of full-band taking into account both good distortion, transients, power and other properties is very difficult, the most effective solution is to sub-band playback. To this end audio manufacturers and leasing businesses as opening ceremonies and other specific types of activities to prepare a variety of different audio devices, according to the needs of different activities planned set design and production of different types of units, some are only responsible for playing the bass, said for the woofer, midrange unit called playing tenor, treble tweeter is responsible only for playback, so the stage lights can be reflected in art and design sound effects shown. Take appropriate design, the performance of each unit are doing better.
Although the speaker can be used to design a full-band sound, but these considerations, combined with multiple units to cover the entire audio band design approach or the majority. Concrete with a few units, depending on the audio frequency range is divided way, if it is simply sub-surface treble and bass (or low) enough two speakers; if it is divided into high, medium and low frequency section of the third speaker, then at least have to use three units, two low-frequency units are designed to work in parallel mode is also very popular, so the total number of units may reach four; some big band sound into a more detailed, if the modular designed to work in parallel, the total number of speaker units will be more. Information or instructions in the speaker on the road X X units usually have such a program, that is, the frequency of the speaker and the large ones used to specify the total number of units, such as three-way four-cell, that is three-way speaker design, a total of with a four speaker units, the rest and so on. Top of the speakers, but added that only a full-band unit, in fact, if the unit really able to do full-range, then it's not a lot of advantages over the multi-unit speaker can. However, full-band sound is really several hundred dollars everywhere, but also tens of thousands or even hundreds of thousands of not very rare, but just a few thousand dollars to do it more difficult to do the difficult.