Modern audio brand, the type of modern audio
With the rhythm of life, people are now in the era of entertainment. Many people buy audio at home, can listen to songs and sing at home, but people don’t know which brands are sound. understand, the next house decoration Small series to introduce the kind of modern sound and modern audio brand, I hope your reference!
1. The brand of modern audio
1. Hyundai Audio, JBL, (400-630-6678, 1946 US, global manufacturer of audio and infotainment products, the world's largest professional speaker manufacturer, Harman (China) Investment Co., Ltd.)
2· Modern Audio, Hivi Hivi, (400-0909-199, domestic famous home theater/audio brand, Hi-End advanced speaker manufacturer with international reputation, leader in electroacoustic technology, Zhuhai Huiwei Technology Co., Ltd.)
3. Hyundai Audio, Yamaha Yamaha, (400-051-7700, founded in 1887 in Japan, started with a high-quality reed organ, the world's largest musical instrument manufacturer, specializing in the production of musical instruments / audio equipment / audio-visual products / semiconductor materials, etc. Yamaha Musical Instrument (China) Investment Co., Ltd.)
4. Hyundai Audio, PHILIPS Philips, (4008-800-008, started in 1891 in the Netherlands, a world-renowned multinational electronics brand, a large electronics company focused on healthcare/quality life and lighting, Royal Philips, the Netherlands)
5. Hyundai Audio, Harman Kardon, (400-630-6678, founded in 1953 in the United States, an internationally renowned manufacturer of audio products, specializing in the development, production/sale of home and car audio, Harman ( China) Investment Co., Ltd.)
6. Modern Audio, Edifier (400-810-5526, founded in 1996, Beijing famous trademark, high-tech enterprise with multimedia audio and home audio as its core products, Shenzhen Rambler Technology Co., Ltd.)
7. Hyundai Audio SONY Sony, (400-810-9000, started in 1946 in Japan, a representative company in Japan, the world's electronic 3C / game / financial / entertainment giants, the pioneer of portable digital products, Sony)
8. Hyundai Audio, SANSUI Shanshui Audio, (0760-88886978, founded in Japan in 1944, its speakers are internationally renowned, providing a wide range of electronic products and services, a world-renowned large-scale audio and video company, Guoguang Electric Co., Ltd.)
2. Types of modern audio
1. Closed Enclosure is the simplest speaker system. It was proposed by Frederick in 1923. The speaker unit is housed in a fully sealed box. It can completely separate the forward radiated sound waves and the backward radiated sound waves of the speakers. However, due to the presence of the closed box, the resonance quality of the speaker is increased to generate resonance, and the lowest resonance frequency of the speaker is increased. The sound of the closed speaker is somewhat deep, but the bass analysis is good. When using the ordinary hard-folding speaker, in order to obtain satisfactory bass playback, a large-sized large-sized cabinet is needed, and the new closed-type speaker is enclosed in the cabinet. The elastic effect of compressed air quality, although the speaker is installed in a small box, the air cushion behind the cone will exert a counter driving force on the cone, so this small closed speaker is also called an air cushion type speaker.
2. Bass-Reflex Enclosure, also known as Acoustical Phase Inverter, was invented in 1930 by Thuras. In its load, there is a sound outlet opening on one panel of the cabinet, opening There are many positions and shapes, but most of them are equipped with a sound tube in the hole. The relationship between the inner volume of the cabinet and the sound conduit hole, according to the Helmholtz resonance principle, produces resonance at a specific frequency, called the anti-resonance frequency. The sound wave radiated from the back of the speaker is inverted by the duct, radiated to the front by the sound outlet, and is superimposed in the same direction as the forward radiated sound wave of the speaker. It can provide a wider bandwidth than the closed speaker, and has higher sensitivity and smaller. Distortion, ideally, the lower limit of the low frequency playback frequency can be as much as 20% lower than the speaker resonance frequency. This kind of speaker can reproduce rich bass with a small box, which is the most widely used type.
3. Acoustic resistance Enclosure is essentially a deformation of an inverted speaker. It is filled in the sound outlet conduit with a sound absorbing material or structure, and is used as a semi-closed box to control the phase inversion and buffer it. To reduce the anti-resonance frequency to widen the bass playback band.
4. The Labyrinth Enclosure is named after the transmission line of classical electrical theory. There is a sound tube made of sound-absorbing wall plate behind the speaker, the length of which is one quarter of the wavelength of the low-frequency sound required to be raised or one eighth. Theoretically it attenuates the sound waves coming from behind the cone, preventing it from reflecting to the open end and affecting the acoustic radiation of the woofer. In fact, the transmission line speaker has a slight damping and tuning effect, which increases the sound output of the speaker near or below the resonance frequency, and reduces the stroke amount while enhancing the bass output. Usually, the sound tubes of such speakers are mostly folded in a labyrinth shape, so they are also called labyrinth or labyrinth.
5. The passive radiant speaker (Drone Cone Enclosure) is a branch of the bass reflex speaker, also known as the empty paper cone speaker. It was published in 1954 by Olson and Preston in the United States. Its opening sound port is replaced by an empty paper cone (passive cone) without magnetic circuit and voice coil. The radiated sound generated by the vibration of the passive cone and the forward radiation of the speaker In the same phase working state, the composite acoustic and passive cones formed by the air in the box and the passive cone support elements form resonance and enhance the bass. The main advantage of this kind of speaker is that it avoids the unstable sound generated by the reflected sound hole, and can obtain good sound radiation effect even if the volume is not large, so the sensitivity is high, the working range of the speaker can be effectively reduced, the influence of the standing wave is small, and the sound is small. Clear and transparent.
The improvement of living standards, a lot of people are at home to put on the sound, the above article is about the modern audio brand and the type of modern audio, Xiaobian where to say less understanding, if you want to know more about the decoration information , please continue to pay attention to the decoration home network.
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