Definition
computer speakers mainly refer to speakers used around multimedia equipment such as computers, and have many famous brands in 2012.
Applicable range
Mainly suitable for iPod, MP3 / MP4, music mobile phones, PSP game consoles, computer products, etc. Depending on the interface, there is also a difference.
Speaker is the terminal of the entire sound system, its function is to convert the audio power into a corresponding sound energy and radiate it to the space. It is an extremely important part of the sound system, as it is responsible for the transition of the electric signal into the sound of the sound to listen to such a key task directly, it is directly to deal with people, and the audience is very sensitive, And have strong distinguishing capabilities for the sound of complex sound. Since the human ear's subjective feeling is the most important standard for evaluating the quality of sound quality of a sound system, it can be considered that the performance of the speaker is a key role in the performance of a sound system.
Classification
Computer speaker can be divided into 2.0 speakers, 2.1 speakers, 5.1 speakers, or even 7.1 speakers depending on the number of boxes.
Speaker
speaker has a variety of classification: according to its exchange, electromagnetic, piezoelectric, digital, etc .; The US GFT speaker is divided into single paper, composite paper pot, composite tube, coaxial, etc., can be divided into cone type, ball top, flat, belt, etc. Frequency can be divided into high frequency, intermediate frequency, low frequency and full-band speakers; can be divided into multiple magnetic, inner magnetic, double magnetic ribs and shielded forms, according to magnetic circuit form; according to magnetic circuit properties can be divided into ferrium Body magnet, bismuth boron, aluminum nickel cobalt magnet speaker; the diaphragm material can be divided into paper and non-paper bulvers.
The box is used to eliminate the sound short circuit of the speaker unit, inhibit its acoustic resonance, broaden its frequency response, and reduce distortion. The box profile structure has a bookshelf and landing, and a vertical and horizontal points. The interior structure of the box has a closed, inverted phase, a band-parallel, air paper basin, labyrinth, symmetric drive type, and tube type, the most use of the most close, inverted and band-parallel formula .
Scalable into full-band speakers, bass speakers, and ultra-low soundboxes in
by use. The so-called full-band speaker means an audio that covers low frequency, intermediate frequency and high frequency range. The lower limit frequency of the full-band speaker is generally 30 Hz-60 Hz with a maximum frequency of 15 kHz to 20 kHz. Only one or two pairs of full-band speakers can be fully affected by one-pair or two pairs of full-band speakers in a general small and medium-sized audio system. The bass speakers and ultra-low speakers are generally used to supplement low-frequency and ultra-low frequency amplified dedicated speakers. Such speakers are generally used in large and medium-sized audio systems to strengthen the strength and shock of low frequency amplification. When using an electronic divider (sputum) divided, the low frequency signal is sent to a special bass amplifier, and then push the bass or ultra-low soundbox.
Press the box structure
can be divided into a sealed speaker, inverted speaker, maze speaker, acoustic tube speaker, and multi-cavity resonant speaker. Among them, the most in the professional speaker is inverted speakers. Its characteristics are frequency anesthes, high efficiency, high sound pressure, and comply with professional audio system speakers, but because of its low efficiency, less in professional speakers Application, mainly for home speakers, only a few listening speakers adopt a closed box structure.
Box Materials
2012 Speaker The material used in the speaker mainly has a plastic box and a wooden box. Material thickness and quality are directly related to speaker cost, while also affecting the performance of the speaker. The larger the material density of the speaker housing, the smaller the vibration generated by the box when emitting sound, especially the active speaker with high power amplifier, and the thickness of the sheet is a powerful guarantee for ultra-low sound effects.