Introduction

Whether if you have watched pointless YouTube videos, listened to music on the go, wasted your time in a phone call, listened for NextRide announcements on a bus, you have used a speaker today in some form, yet a lot of us are mostly oblivious to the inner workings of such a common and useful piece of technology we could not survive without. 

The first speaker dates back to 1861 after the German self-taught inventor Johann Phillip Reis (fig. 1) developed a loudspeaker which could produce tones and muffled speech to use with his telephone, however the type of speaker most common today, called the dynamic speaker, was not invented until 1924 by Cheser W. Rice and Edward W. Kellogg (fig. 2). This is the type of speaker this website will be discussing the inner workings of.