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The Sound of the Speaker

How Electricity Makes High-End Speakers Work

The Sound of the Speaker

Everyone loves to hear and feel sound of a great pair of speakers from world class brands like Bowers & Wilkins, Dynaudio, Paradigm, and Goldenear. But just how does electricity make speakers work? Speakers come in a plethora of sizes and shapes and can accommodate us anywhere from our cars to our homes. With advances in technology, speakers play a huge role in listening to our phones and iPads as well.

Speakers contain an electromagnet that allows an electrical signal to be translated into an audible sound. The electromagnet is a coil made of metal that creates a magnetic field with electric currents flowing through it.

Three Main Components of a Speaker:

  • Permanent Magnet
  • Electromagnet
  • Cone

The Action is Inside the Speaker

Yes, this is where it all goes down! Engineers place a permanent magnet behind an electromagnet. The permanent magnet is stabilized or fixed into a certain position, while the electromagnet has freedom of movement or mobile. The direction of the magnetic field is quickly altered when pulses of electricity pass through the metal coil of the electromagnet. As a result, the movement of the electromagnet vibrates. Inside there is a cone that is attached to the electromagnet. This cone is made of pliable material such as plastic or even paper. These materials amplify the vibrations from the electromagnet and push sound waves into the outside environment for your listening pleasure. Now that you know how electricity and speakers work hand-in-hand to make your favorite songs that much better, feel free to turn up the volume and rock out!

About the Author

Justin Feldstein

Justin Feldstein

After a brief hiatus in Washington, DC to attend undergraduate (Go GDub!) and graduate school (Hoya Saxa!), Justin has come on-board full-time to head business development and help drive Audio Den into the future. His focus on organizational management, business processes, and web presence make sure Audio Den is running efficiently, effectively, and always honed in on the client experience. Justin brings a pragmatic and results-driven strategic vision to the team. As an unrelenting “digital native,” Justin also works in the field liaising with our installation and sales team in integrating emerging technologies. As James’s son, it was no coincidence that Justin’s first word was “peaker” (“speakers”). Justin is an avid sailor, diver, and is slowly but surely working on his private pilot’s license. Justin is a certified Control4 Installer and Audio Den's designated OSHA Safety Officer.

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