The first is the sound of the theater, ALTEC full frequency.
The voice of the theater is the first to produce full-range speakers and coaxial speakers. The company's speakers and speakers were the vane of the world audio industry before the 1980s. Technology and design ideas have crushed the global counterparts, and the speakers produced are the objects of imitation. From magnets to paper pots, even to horns, it is a model for industry learning. The full frequency produced by this company ranges from 6 inches to 15 inches, all of which are famous, among which the classic ones are 40 1C, 403A, 405A, 4058B, 4 18B, 4 19A, 410. But the most famous is 755E, and there are many versions of 755. The earliest version is 755A introduced by Xidian 1947. In the early years, AR (Acoustics Research) introduced the AR- 1 speaker with WE 755A and its own bass unit, which caused a sensation in the sound circle. However, the 755A monomer introduced by WE was soon discontinued. Later, Altec continued the same technology and design, and began to produce 755A at 1954, creating a series of 755 legends. The most successful product is 755E. This 8-inch loudspeaker, with a frequency response range of 40- 15KHZ, has become the most famous full-range loudspeaker in the world. Because people who have heard of it can't forget its charm, it is a unique taste of paper pot, and with the unique taste of Indox V iron core magnet and the unique taste of Xidian timbre, the data may not even be as good as that of second-rate full-range speakers, but it is the most worthwhile full-range speaker in the world, because of its taste, you may not want to leave it for a day under the impetus of a one-watt single-ended courage machine. I remember I went to the home of a big fan in Guangxi. The house is a pair of 18-inch speakers of the sound of the theater. I can hear the earth-shattering effect, but he listens to human voices with 755e. He said that no one could hear this feeling.
The second is the full frequency of American Budweiser EV.
Budweiser beer is an American horn manufacturer, which is as famous as ALTEC in the last world and has a high technical level and market share. Unfortunately, it later focused on the professional audio field. This company's full frequency range is also very wide, and there are famous speakers everywhere. There are many speakers from 6 inches to 15 inches. Excellent full-range speakers include sp- 15B, SP- 15, sp- 12B, SP- 12, SP-8B, MC- 12 and MC-. He is also an expert in ferromagnetism of cobalt magnets and indox ⅴ iron cores. Their full frequency is the best in the industry in terms of price and sound. Their excellent full frequency comes from 1970- 1972.
The third is the full frequency of Zhan Sen, the American God of War.
This legendary American audio company, founded in 1927, has absolutely decisive influence on the world audio industry. Although the best coaxial horn of Ares even exceeds the sound of the theater, full frequency is not his mainstream business, but the cobalt magnet of Ares also has full frequency excitation, which is an ultra-high water product in the industry. From 1970s to 1990s, many famous guitar speakers used full-range speakers. Even the famous 18-inch, 15-inch and 12-inch moving magnetic high-priced speakers of Xidian WE in the 1940s were basically made by the God of War, who produced the world's first truly coaxial speaker KM- 15. Full-range speakers are not difficult for this legendary speaker factory with the most technology and the lowest key in the United States. Everything from eight inches to fifteen inches, many of which are branded with MAGNAVOX. Its full-range speaker from paper to edge has a noble temperament, gorgeous and bohemian style, which is too individual. Moreover, the full-frequency price of God of War is not high. After all, it is the originator of the foundry. Which foundry can sell at a high price? Let Foxconn try to make a mobile phone, but the quality is definitely good.
The fourth is of course JBL.
Needless to say, although JBL is now owned by Harman, JBL's brand is far more than Harman. JBL is a pillar audio enterprise in the United States, second only to Xidian. These pillars are the sound of the theater, Budweiser beer, God of War and JBL. Before the 1980s and after Nortel, these four companies represented almost all speakers in the American audio industry. JBL speakers, like the above-mentioned companies, do everything, and the technology research and development is absolutely world-leading. JBL speakers, as well as big paper cone speakers, are also top in the world. It not only produces horns, but also its horn is like Shaolin Temple in China Wulin. JBL's full-range speakers are also advanced in many designs. They are all single-basin speakers, and the dust cap is aluminum alloy. The first pair of voice coils has a good heat dissipation effect, and the second sound spreads much more than the paper cone dust cap. Later, it became an example and imitation object of Japanese speaker industry, and also played a directional role in the development of Japanese full-range speakers. The LE8T famous full-range speakers are 2 1 15, 21/5a, 2 1 15B, 2 1 15H and 2/kloc. Everyone knows the most about LE8T. In Japan, the value of this kind of speaker is like a god, as long as the speaker with this kind of speaker is not cheap, at that time, Shanshui, the most cattle audio company in Japan, liked to use this type of speaker as the speaker. The F series of Japanese CORAL Coral and the F series of fostex are imitations of LE8ET, so you can imagine the charm of this 35hz- 15khz eight-inch speaker.
Fifth tone full frequency
Why this brand? Because it only produces a full range of one size, and it is very famous. It is famous not because it sounds good, but because it is called the worst speaker in the world. If you do everything to the extreme, you will be famous. From the initial period of 1958 to 2005, AURATONE only produced one full-frequency size, only 4.5 inches. Is the famous auratone 5c. During this period, Auratone improved the quality standards of the music and record industries. It is more than 20 years earlier than the world-famous Yamaha white basin. 5C, which has been widely used in major recording studios in the industry since 1970, is still the industry standard of reference speakers in recording studios. It is used by the most famous old recording studio in the world. Auratone is regarded as the voice of premonition, which is used by some big-name recording artists. After the death of the boss Jack, auratone once stopped production. Those famous old users raised the expectation that their family would continue to produce 5C, and Jack's grandson resumed the production of 5C on 20 12, which excited many old musicians and Andhadhun. Who would have thought that when they first came into contact with 5c, they said that they might hear a fake monitor. Of course, auratone does not absolutely only produce 5C. In the past few decades, especially in the later period, they have also produced several cross-border speakers with high sound quality, which are very popular among professionals and become the collections of professional music producers, which are rarely seen in the market.