2012年2月16日星期四

how is the car stereos systems developed?

How is the developing history of car stereos?

What can the car travel be without the aftermarket car stereo mounted in the vehicle? Have you ever thought about this problem? When you go on a car journey in a big country in a car without the music, radio, how will you feel? Now we can no longer drive without the car stereo which can bring us fun and entertainment. During the twenties, driving was still a very silent affair. In the very beginning of the 1930s, the car radio has gradually become necessary part of the American drive.

In the nowadays society, the cars are equipped with the audio systems which are quite different from the radios at the earlier times. We can really experience the difference, from the 10+ speaker systems and the powerful amplifiers to the excellent subwoofers and the finely tuned frequency response curves. All that devices surely match the special and dedicated car interiors. What a leap it is! You may be very curious about the developing history of car stereos systems. Now let’s take a look back at how the oem car stereo can gradually become what it looks like now.

How is the developing history of car stereos systems?Let’s come to the first car radio, which was named monophonic AM radio. It was a norm for rather a long time. In 1930, the first automobile dashboard radio “Motorola” was invented by William Lear, Joseph Galvin and Paul. Some people named it also “motorized Victrola”, which demonstrated the 5T71 prototype in a Studebaker. At that time millions of car radios are sold. Then there were two-way radios for the fire departments and the police station. After that, many stereo systems like home stereo system and television came into the sight of people.

What was indelibly imprinted in the psyche of the American was the image of a couple on the open road in a convertible in the 1980s. It was complemented by the sound of AM radio and the very start of the rock and roll. AM took the place and controlled for a rather long decade and even into the 1960s, but the first automotive FM radio was debuted in 1952 by Blaupunkt. A year later, also in 1953, the first “Seek” station-search was unveiled by Becker, with which drivers can pick out the one they like to listen after sampling all the available radio station for just a few seconds. In the mid-to-late 1950s came the transistor-based radios which can lower the amount of the power required as well as the space.

Then let’s turn to the stereo 8, Compact Cassettes and the Compact Discs.

It was not until the 1960s that drivers or passengers could choose the songs they liked.

Stereo 8, or we can call it eight-track tapes, are now typically famous for the horrid sound quality and cheesy plastic construction. They became the only practical way to customize a playlist just for not long a time. Compact cassettes always seemed to be a better choice in contrast, when Philips unveiled the format in 1964. Soon after that followed the first radio stereo.

The early 1970s means the coming of the aftermarket. The customized stereo outfits are suitable for those in hope of improving their vehicles' audio capabilities, which are much better than what any car manufacturer or dealer can offer. The early 1980s came with the first "Benzi box"-style pull-out stereo receivers.

By this point, more attention is paid to the sound quality of the amplifier and speakers. For decades, car audio speakers were single, full-range. Later, the first 2-way and 3-way models came into sight which combined separate tweeters and midranges in a plastic or metal bracket ahead of the main woofer. Miniature, passive 2-way and 3-way crossovers split the incoming audio signal into separate frequency ranges.

 For more information about the history of car stereos systems, please log on OemCarGps.

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