Introduction to the principle of professional audio waterproofing

　　Professional audio systems often use the following two methods for waterproofing:

　　1. Wrap all the outer surface of the box with FRP, wait until the FRP is dry, and then polish and spray paint. Generally, you need to spray paint 3-4 times, so that the box can not only achieve waterproof performance, but also retain the original surface.

　　2. Another more advanced waterproof treatment is to repeatedly apply waterproof plastic grease paint on the plywood of the box body, so that the waterproof paint can penetrate into the plywood of the box body, which can increase the tightness of the box body. There is a deeper protection for the cabinet. After the cabinet body paint is completely air-dried, polishing and spray painting are carried out, and the surface of the original speaker is also retained. Speaker waterproofing also has a certain degree of technicality. It is not a simple application of waterproof glue. After ordinary glue is applied, it will affect the damping of the speaker, thereby affecting the sound quality of the speaker. Special glue must be used to evenly distribute the speaker cones and front panel grille. The outer layer of stainless steel should be covered with several layers of anti-rust paint, and the inner layer of the mesh cover should be covered with a sound-permeable sponge to prevent long-term rain, dust, etc. soaking and rot. The speaker plug and socket adopt professional waterproof speaker plug accessories.

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