Introduction to car audio knowledge-Features-Classification articles: The article mainly introduces the related knowledge points of the manufacturing materials of car audio materials, the setting of tweeters, the characteristics of woofers and so on.

Car audio material classification introduction

The car audio material refers to the manufacturing material of the car speaker cone. The material of the current speaker is distinguished by the tweeter and the woofer.

If the tweeter is mainly used for digital sound sources, the material is mainly made of soft ball tops with better quality silk film and lower cost PV film. It can reduce the hard feeling of high frequency signal with the digital sound source. Gentle, smooth, delicate feeling; if the tweeter is mainly used for analog sound sources, the material is mainly titanium dome.

The woofer determines the sound characteristics of the car audio, and the selection is relatively important. The most common ones are as follows:

There are several kinds of paper cones, such as adhesive paper cones, paper-based wool basins, tight pressing basins, etc. The paper cones have the advantages of natural sound, low cost, good rigidity, light material and high sensitivity. The disadvantage is poor moisture resistance and manufacturing time. Consistency is difficult to control.

Bulletproof cloth, which has wide frequency response and low distortion, is the first choice for those who love strong bass. The disadvantages are high cost, complicated process, low sensitivity and light music effect.

Wool woven pot, soft texture, it is very good for soft music and light music, but the bass effect is not good, lack of strength and shock.

Polypropylene basin, with good consistency and low distortion, is widely used in high-end car speakers.

In addition, some high-end car speakers also use PPTA diaphragm, polyether imide mid-range cones and other new materials. The PPTA diaphragm has similar performance to the diaphragm of the metal material, but there is no sharp and harsh sound that often occurs in the metal material, so that the car sound can have delicate and vivid sound characteristics. The polyetherimine mid-range cone (PEI) is a mixture of ether and polyimine, which is used as a mid-range and high-range cone material with superior physical properties. PEI delivers clear sound with high rigidity, durability, high heat resistance, chemical resistance and wind and rain.