Sound film materials are widely used in the field of sound, with the improvement of living standards, sound effect requirements are higher and higher. The current sound film coating materials are mainly paper and plastic. Aluminum and titanium and other materials made of beryllium foil sound effect is the best. This is due to the high elastic modulus of beryllium. Therefore, many people are exploring the use of beryllium foil to make sound film materials. However, because beryllium is difficult to be made into foil with hexagonal structure, it has not been widely used. So far only one American company in the world has been able to produce beryllium sound film materials. This is a good opportunity for us to develop and utilize this material.
There are a lot of improvements in this area to make the properties of paper pots more stable. Common ones are surface coating or writing on paper formulations. Some manufacturers claim that their paper pots are waterproof, and that some outdoor PA speakers should be fairly reliable. Of course, as mentioned earlier, most of us look at this sort of thing at best. It's not easy to see the door. In addition, don't equate the long history of paper pots with the anachronism. Sound film coating can be seen from the perspective of the overall audio industry. The proportion of paper cone horn unit occupies the first place of all kinds of units. Don't believe look at your TV, hand-held tape recorder, bedside stereo, computer, etc., are most of them using the small horn of paper basin unit? You say, come on! How can these things compare with my high-tech High-End horn! But from another perspective, if these "sub-items" are replaced by non-paper basin units, guaranteed to be more difficult to hear, and more expensive.
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