The outcome of the lesson: How a loudspeaker works.
8 fundamental concepts:
A loudspeaker is an electro-acoustic device made up of one or more drivers.
A driver is an output transducer with a specific frequency range and frequency response. One single driver does not cover well the full frequency range.
To cover the audible frequency range, a loudspeaker uses a number of drivers that cover a section of the frequency range. Each of these sections is called way or band (we refer to 3-way speakers, 2-way speakers, and so on).
A way can be made up of 1 or more drive of the same type.
Within a loudspeaker system, additional way or bands will be added by additional loudspeakers that function in another frequency range. For example, adding a sub (that has a frequency range in the low part of the sound spectrum) will add a 3rd way to a 2way speaker.
Where the frequency range of a way/band ends, the frequency range of the other way/band starts. The point where the 2 way/band meet is called the crossover point.
An electronic device called crossover will perform the “division” of the audible frequency range into different ways/bands.