Many original car stereos have at least two trebles. One is that the original car has no tweeter at all, but a tweeter cup is added to the bass to restore the high frequency part.

Another situation is that the pitch of the original car stereo is very high, but the quality is poor, such as the high pitch using Myra plastic diaphragm. At this time, upgrading the treble will make the car audio have better resolution and good listening.

In view of these two situations, the method of heightening is actually different; But it is necessary to match high-quality treble to have good effect; This is because car audio is different from home or professional stage audio, and belongs to near-field listening (the distance from treble is less than 1 m). Therefore, the distortion of treble must be low in order to have good hearing.

Extended data

Because the main function of the tweeter is to express delicate sounds, the installation position of the tweeter is very particular. If the installation position of car audio is unscientific, the sound field effect will be unsatisfactory. The tweeter should be installed as close as possible to the human ear, such as on the A-pillar of the car or above the dashboard. Some models are located on the door, so that the sound field is basically equal to the human ear, and the owner can better appreciate the charm brought by music.

Matters needing attention

Because high-pitched sound waves have a great influence on the loudspeaker diaphragm, in order to achieve accurate and undistorted high-pitched effect, the loudspeaker diaphragm is required to be of high quality. In addition, due to the requirement of sound field positioning, choosing reverberation direction is also the requirement of vehicle-mounted treble.

For this reason, NdFeB hemispherical tweeters are often used in car tweeters. Its NdFeB magnet has small volume and strong magnetic force, and the sound film adopts silk soft diaphragm. This tweeter is naturally full of sound and has a clear treble.

There are also pure carbon dome tweeters and dome-shaped polyester tweeters coated with styrene rubber, but the sound quality is slightly insufficient. Loudspeakers are mostly installed on both sides of the dashboard and above the door of the car, and the reverberation direction is selected through special rotating brackets.

References:

Tweeter- Baidu encyclopedia