Historical development of car audio

Although in terms of audio equipment for cars, only an auxiliary equipment, there is no impact on the operational performance of the car. But as people enjoy the increasingly high demand, car manufacturers are also increasing attention from car audio equipment, and evaluate it as the basis for one car comfort. History is also a history of the development of car audio development of electronic technology, each of the major technological advances in electronic technology are driving the car audio development. Early in 1923, first appeared in the United States assembled car radios, followed by many cars are to follow suit in the dashboard assembly is installed radios. Then waiting with radios are used tubes, until the 1950s after the emergence of semiconductor technology, the car radio appeared technological revolution, with the semiconductor gradually replace the tubes, improving the life of the car radio. Early 70s, cassette tape recorders into the market, one can play cassette tapes vehicle retractable dual-use machines appeared in the car, while the movement began to apply the integrated circuit. Until the late 1980s, the general car stereo with a cassette retractable dual multi-machine basis with a combination of a pair of speakers, two speakers left and right channels, and some placed on both sides of the instrument panel assembly, some set at the door, and some placed behind the rear seat, retractable dual-use machine output power more than about 20 watts.

Today, the car audio has entered a new milestone, the high-power multi-output, multi-speaker surround sound, multi-chatter-type laser CD other direction. World car audio manufacturers will also be turned into a special sound industrial sector, for the special circumstances of cars, give full consideration to car acoustics, auto audio equipment using high-tech manufacturing, which broadcast sound entirely comparable with home stereo. Japan Lexus LS400 sedan AM / FM stereo system had five amplifiers, with seven crossover speakers, including two arched high-frequency speakers, four speakers and a wide-band 8-inch rear-mounted low frequency speaker make whole car full of loop-back feel three-dimensional sound.

There are already a variety of exclusive cars for advanced audio equipment, some car audio enthusiasts will be big power amplifier and electronic networks is housed in the car trunk, large-caliber speakers and subwoofer speakers are embedded in other models under the rear window Wai panel and door panel, using a separate DC power supply, power output up to hundreds of watts or more, deep and beautiful timbre, height is wrong, put inside a small space into a pleasant music room, tempting beauty to enjoy .

Automotive operating environment is very harsh, including normal working vibration, temperature, noise, electromagnetic and other electronic devices can interfere with the vehicle, so regardless of car audio equipment must be dedicated strictly from design and manufacturing process requirements than home audio, and expensive, in this sense, a high-performance car audio sound is actually today the world's top products.

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