When listening to music or watching a movie with amazing effects, a decent loudspeaker may make all the difference. But have you ever stopped to think about how the best bass speakers for home works? In the same way that many other electrical devices are made up of coils and magnets, a speaker’s interior biology is also composed of these components and others. The ‘heaven’ of sound is what you get when you put all of them together.
There is a direct correlation between the size of the magnet and the quality of the speaker produced. How well the coil and magnets convert electricity into sound is a major factor in determining how much power your speaker can take.
Does the Magnet’s Size Impact Sound Quality?
The quality of your speaker will be determined, in part, by the size of the magnet utilised (which I shall explain in further depth below).
In contrast, a light magnet would result in less bass response and increased chances of feedback and crackling.
Simply said, larger magnets provide higher sound quality in speakers.
To what purpose does a speaker’s magnet contribute?
To put it simply, speakers are energy transducers that transform electrical energy (signals) into audible sound waves (mechanical waves).
They use permanent magnets to transform electrical energy into mechanical energy and then back into electrical energy, based on the attraction and repulsion of electromagnetic waves.
In other words, they use electromagnets to convert the alternating current (AC) voltage present in the music into the mechanical motion of a diaphragm inside a magnetic field, so producing audible sound.
Does It Really Matter How Big of a Magnet You Use?
To get to the answer, it will help to know how a speaker operates. A speaker consists of a cylindrical coil attached to a cone made of paper or another composite material.
When current is sent via a coil’s wire, a magnetic field is created. The magnitude of the resulting magnetic field is proportional to the wire’s length.
An amplified signal is delivered to a wire coil, which in turn generates a magnetic field that varies in pitch and amplitude to recreate the sound.
The membrane of the speaker vibrates as a result, which in turn causes the molecules of air to vibrate. The sound that enters your ears is really the result of the vibration of air molecules.
Given this background, it should come as no surprise that increasing the size of the magnets and the number of turns of wire on the coil would result in a stronger magnetic field of opposition. A stronger membrane vibration, caused by the magnetic field’s opposite, produces a louder and more clear sound.
The size of the magnet may vary widely across different magnet types. The effectiveness of Neodymium magnets is often higher than that of the other two types, as we shall see in the next section.
Speaker Magnets and Their Applications
Speakers may be made using a variety of magnets. Among the best-known examples is the usage of rare-earth Neodymium magnets in premium-tier speaker brands. These permanent magnets are the strongest currently available.
Magnets made from the rare earth element neodymium
Since its discovery in the 1980s, neodymium magnets have dominated the market for premium electromagnetic audio transducers.
You’ll find them in high-end audio equipment including headphones, microphones, and speakers.
The neodymium, iron, and boron in their construction makes them very powerful (Nd2Fe14B). This causes them to generate very powerful magnetic fields.
They also have a reputation for being the lightest magnets available.
Magnets made from Alnico
Alnico, which is composed of iron, aluminium, nickel, and cobalt, is used by other speakers because it is strong and long-lasting.
For speakers, these magnets have been used since the 1950s thanks to their high coercivity and powerful magnetic fields.
Magnets made of ceramic
There is another kind of magnet that may be used in speakers, and it is made of ceramic (or “Ferrite” magnets). Made from iron oxide and strontium carbonate, they are promoted as a more cost-effective alternative to traditional Alnico.
They have a middle strength and are the most inexpensive sort of permanent magnet, however they don’t always create a great magnet for speakers.
Choosing a Qualified Speaker: Some Points to Think About
Do you want to buy a better speaker but don’t know where to start? You have found the proper location.
Some of the most crucial criteria to evaluate in a speaker are listed below.
Some of the energy transmitted by an amplifier is lost as heat as the speaker converts it into an audible signal. The higher the wattage, the lower the output.
The purpose of a speaker is to maximise this conversion so that the audience can experience the full effects of the music or film. Some of the energy transmitted from the amplifier will be lost by all speakers.
The lower the dB level, the less effective the speaker. As an illustration, a 95 dB speaker is more effective than an 88 dB speaker.
Speaker prices tend to increase as you move up the range. Always keep in mind, though, that you get what you pay for.
