Styrofoam Plate Speaker Information

Overall Information:
The general speaker takes an electrical signal, and translates it back into physical vibrations to create sound waves.
All speakers have the same basic elements, they have a diaphragm, they have a form of suspension for the diaphragm, there is a voice coil and also a magnet.

This same basic principle of a speaker has been around since the late 1800's since Alexander Graham Bell made the first loud speaker.

 More detailed Information:
 A driver produces sound waves by rapidly vibrating a flexible cone, or diaphragm.

• The cone is usually made of paper, plastic or metal,it's attached on the wide end to the suspension.
• The suspension, or surround, is a rim of flexible material that allows the cone to move, and is attached to the driver's metal frame, called the basket.
• The narrow end of the cone is connected to the voice coil.
• The coil is attached to the basket by the spider, a ring of flexible material. The spider holds the coil in position, but allows it to move freely back and forth.

Some drivers have a dome instead of a cone. A dome is just a diaphragm that extends out instead of tapering in.














































References:
https://www.youtube.com/watch?v=EIbzQ_8-aaM
 http://electronics.howstuffworks.com/speaker4.htm