Car audio for cars, is a supplementary device for automotive performance there is no effect, but with the improvement of people's quality of life, everyone audio visual requirements for increasingly high levels of car manufacturers increasing emphasis on Car Amplifier equipment.

However, many manufacturers to reduce costs, only the configuration of the common audio equipment, even if there is CD, VCD machine of the sub-luxury sedan, is relatively junior, can not achieve perfect audio-visual effects, so many owners buy a new car later, they will immediately begin preparations for installation of audio equipment. Car audio is the main component of the host, power amplifier and speakers, in the purchase, paying particular attention to the three-part performance. Want to have perfect acoustics, it is necessary to the maintenance of professional automotive beauty decorative center to allow professional technicians of the original sound system modification or replacement. To judge the merits of the host audio, most direct way is to see its technical indicators. Mainly from the following judgments:

1, the output power: It is now the subject of a host of music power the vast majority of power between the 40W-60W power can not be too large.

2, frequency response: human ear can hear frequencies in the range of 20HZ-20KHZ, and are thus the least to achieve this target value, and the more widely as possible.

3, the signal to noise ratio: it refers to the ratio of signal and noise music, generally high-end high power speaker in 90DB above, the greater the value the better.

4, the harmonic distortion (THD): This indicator reflects the degree of reduction of sound reproduction, the higher the number the smaller the reduction, the better the sound.

Above is Linda today for everyone to share the secret of how to buy car audio car audio host to determine good or bad, hoping to help majority of owners.