Before you build your own speakers, you need to know how speakers work. Speakers are devices that transmit sounds throughout the surrounding area. Some of the main parts of speakers are: Diaphragm:
The diaphragm is the flexible cone on a speaker that vibrates up and down. It produces sound waves by causing a series of rarefaction when the diaphragm moves back and forth. This rarefaction forms a wave of different pressures that meets your ear and causes your eardrum to move back and forth as well. The brain will translate this movement into sounds! The diaphragm is more commonly referred to as the cone, and is usually made of paper,plastic, rubber, metal, or other materials. Suspension:
Suspension is a material that runs outside the diaphragm. When the diaphragm needs to moves up and down, the suspension allows it to. It is usually made of rubber, or other flexible materials. Basket:
The basket is the metal frame that surrounds the driver. Spider:
The spider is a flexible material located underneath the diaphragm and is attached to the basket. The spider is important because it holds the voice coil in place and allows it to move up and down. Voice Coil:
The voice coil is a coil of wire wrapped around a magnet. When, electricity is run through the wire, the coil moves up and down. Since the voice coil is attached to the cone and the spider, the cone and spider will move up and down when the voice coil does. Dome:
Many speakers have a dome instead of a diaphragm. The dome is almost exactly like a diaphragm except that a dome is slightly con-vexed. Headphones and Earbuds:
Headphones and earbuds are just two small speakers positioned around or inside your ear. They provide a more private listening experience.
Hear is a link to a great website that shows you how speakers work in greater detail: http://www.centerpointaudio.com/HowSpeakersWork.aspx
Now that you have a basic understanding of speakers, we can proceed to the building of our project.