How to choose a high price-effective car stereo?
For the car CD sound system, it should be noted that dust is dustproof. The laser head is the most expensive part of the CD and the most vulnerable parts. Although the car audio has considered dustproof during the design, it is necessary to pay special attention to the road conditions. Careful maintenance, which can effectively extend the life of the laser head, or make the car audio system for a long time to ensure high-quality music.20 years ago, I can sit in the car and listen to the radio is absolutely known. 10 years ago, a number of music CD / DVD discs must be considered a treasure. In today, the big screen is king. However, regardless of how the era is changed, the vehicle radio function is still not lost. Along the way, I have already experienced 7 iterations.
Development history of car stereo:
The first generation (1974-1983) Manual knob is adjusted only for AM radio, mono pulse radio radio, and another interface can connect to the tape radio.
The second generation (1983-1992) Press the key to adjust the stereo radio while supporting the AM / FM function.
The third generation (1991-1997) increased the digital anti-theft function on the basis of the on-generation.
The fourth generation (1997-2003) has added a map system.
The fifth generation (2003-2008) introduced the CD player to turn on the transition of analog signals to digital signals. At this time, the car radio is called a central entertainment information system.
The sixth generation (2008-2012) CD is replaced by DVD, increasing the LED touch screen, the map has navigation function.
The seventh generation (2012 ~ 2016) integrates 3D maps, DAB + decoders, Bluetooth, WiFi hotspots, etc., called multimedia systems.
Car audio is in a very complex environment, which is always subject to electromagnetic interference from the ignition device of automobile engine and various electrical appliances. Especially, all the electrical appliances in the car use a storage battery, which will cause interference to the audio through the power cord and other lines. The anti-interference technology of car audio uses choke coils to filter the interference of power line between power supply and audio, uses the metal shell to seal and shield the space radiation interference, and specially installs anti-interference integrated circuits in audio to reduce the external noise interference.The audio equipment sold in the market has reached hundreds, the price is from one or two thousand yuan to tens of thousand yuan, or even more than ten thousand yuan. Experts remind, for the general car owners, do not have to arrested from amplifiers to the subwoofer, and the things are used to choose the primary principle of car audio. To choose a satisfactory product in a dazzling car audio, you have to consider prices, brands, distributors and other factors.
The right is the best. When purchasing audio, we must first recognize the brand, pay attention to whether the merchant has the designated agent license authorized by the brand audio equipment manufacturer, and whether there are commitment measures for after-sales service ability and quality assurance. Clear their pursuit of audio grade and economic affordability, clear how much money they intend to spend on various components, high-grade audio prices are naturally expensive. Insiders pointed out: Car audio generally does not advocate one step at a time, and high-grade car audio is expensive, so people should feel the listening pleasure brought by higher-level audio from continuous upgrading. If the audio is made to the top standard at once, the freshness and satisfaction of constant updating will be lost, and the general users of top-level audio may not be able to adapt to it.
A significant change, the car radio may gradually withdraw from the historical stage due to advancement. An entertainment device that will bring fun to the driver will be replaced by a smartphone or in-vehicle system. The constant is that consumers are still full of music or other entertainment forms, 60% of the British respondents say that if they can listen to music or other entertainment, driving will be more interesting.