A doubt that comes here and I have not spoken much is this, how to choose a good speaker to replace the original of the car.
When I started installing sound, there were fashions, I didn't understand them very well, but they existed before. One was and still is, for the speaker to be good it must have a large magnet. Or to "play loud" you need to support high powers.
As I started out in the field of electronics, I studied the theory a lot, but it was difficult to transmit this knowledge to other technicians, when something in fashion is complicated, for example, I remember an installer (with more than 10 years of experience) saying that to connect a loudspeaker in series we should unite positive with positive and negative with negative, just the opposite (this way we connect in parallel but I will leave this topic for later).
What is a loudspeaker?
According to the Loudspeaker Design Cookbook by Vance Dickason and the Newton C. Braga Institute, Loudspeaker is a transducer that converts electrical energy into acoustic energy .
This is the technical definition, but the purpose of the blog is not to go into technical details but to help laypeople.
But we still don't know how to choose?
FACTORY Original Speaker
In the most modern cars, we have “Full range” type speakers and 2-way speakers.
Usually this type of loudspeaker has low defined high-pitched sounds, due to the location that does not favor this frequency because it is “more directional” or due to the design.
Two-Way , better known as a Two-Way Kit or Component Kit, basically consists of a Medium type speaker and a Tweeter, covers audible frequencies more efficiently.
This type of loudspeaker has higher quality due to the tweeter. With it separated, we can direct it achieving greater definition and sound quality.
But Reinaldo, my car's Speaker has a magnet that looks like a “fridge”.
Do you think I never heard this argument from people who said they were "knowledgeable" on the subject?
There are two types of magnets that are widely used in Speakers, Ferrite and Neodymium.
Ferrite , composed of iron in a ceramic state, cheaper, has a volume and weight much greater than those of Neodymium.
Neodymium , a chemical element, rarer than iron, as a consequence it becomes much more expensive than Ferrite, much smaller in weight and volume and having high magnetic fluxes in small spaces.
But what is a magnet for a loudspeaker for?
Basically it works like this, the greater the power supported, the greater the magnetic field generated by the magnet must be, which is why many associate its size with the quality of the speaker.
Now we understand what a speaker is, its types and differentiate the neodymium magnet from a ferrite magnet but which one to choose?
Which Speaker to choose?
There are two situations that we must take into account when buying a new speaker, I will explain:
Speaker exchange by burning the Original
In this case, you should choose the same speaker installed in your car, with preference for changing the pair, for example. The left front speaker has a defect, the ideal is to replace it and also the right front. View here for more info: Automobile Remedy
A loudspeaker suffers wear and tear, its mobile materials need time to "soften" and guarantee its characteristics on which it was designed, if you change only one side, many users may notice subtle differences in the way the audio is transmitted.
If that doesn't bother you, replace only the one that has a defect.