Consumer Electronics

CONE TYPE TWEETERS

Since tweeters must reproduce high-frequency notes, they must resonate at high frequencies. High resonant frequencies are obtained with lightweight, stiffly supported mechanisms. To make the diaphragm of a cone-type tweeter light, it must be small. When we reduce the size and weight of the diaphragm we must, in turn, reduce the size of the voice coil also. Luckily, high frequencies carry only a comparatively small amount of electric power, therefore, the small voice coil is not subjected to electrical overload. Without exception, it is wound with light weight wire such as aluminium wire or ribbon. The lightness of the moving system provided by aluminium makes the high frequency response much better than if copper were used. ...