Ferrite Magnets for Speakers

Music lovers, listen up. Without magnets in your speakers, your favorite tunes would not be heard. The core component producing sound in audio equipment is a magnetic assembly. To simplify, each speaker requires an electrical current which allow the voice coil to move back and forth. When that current is altered, a magnetic field is produced. An opposing magnetic field is needed to create the vibrations in the speaker, which is what you hear. The larger the magnet, the louder the speaker. Sound knowledge. Most loudspeakers have ferrite magnets inside, which can be produced for larger, louder speakers. Ferrite magnets also resist corrosion, which is helpful for outdoor audio systems. Ferrite is also the more cost-effective material for production. Neodymium magnets are also used in higher-end loudspeakers. That comes at a greater cost due to supply concerns.

The core component responsible for producing sound in audio equipment is the speaker. It is a kind of transducer device that converts the electric signal into an acoustic signal. The performance of the speaker has a great influence on the sound quality, and the magnet in the speaker largely determines its performance. So in this article, let's take a look at the magnets in speakers.

The picture above shows several key components that make up the speaker. When an alternating current passes through the coil of the speaker, a corresponding magnetic field is generated in the coil. This magnetic field interacts with the magnetic field generated by the magnet on the speaker, and this force causes the coil to vibrate with the audio current in the permanent magnet magnetic field on the speaker. The diaphragm and the coil are connected together. When the coil and the speaker diaphragm vibrate together, pushing the surrounding air to vibrate, the speaker generates sound from this, which is the principle of the speaker's sound production.

The characteristics of ferrite magnets are that they can be easily formed into any shape and are easy to process and that they are chemically stable and resistant to corrosion by rust and chemicals.

The application of ferrite magnets in speaker is mainly reflected in their stability and temperature resistance. Ferrite magnets have stable performance and high temperature resistance, which gives them certain advantages in certain specific applications. However, compared to neodymium iron boron magnets, ferrite magnets have relatively lower magnetic properties and higher friction, making them less suitable for electroacoustic applications.

Physical properties of ferrite magnets
Ferrite magnets are hard and brittle, with low magnetic energy, but not easily demagnetized or corroded. The production process is simple and the price is low. It is mainly composed of divalent metal oxides (such as manganese oxide, nickel oxide, copper oxide, zinc oxide, etc.), which have high electrical resistivity and are not prone to eddy currents, making it suitable for use in high-frequency fields.

Advantages and disadvantages of ferrite magnets on speakers
Advantages:

Good stability: Ferrite magnets have stable performance and high temperature resistance, making them suitable for use in harsh environments.
Simple production process: The production process is relatively simple and the cost is low.
Disadvantages:

Low magnetic properties: Compared with neodymium iron boron, ferrite magnets have lower magnetic properties, which may affect the sound quality and power output of the speaker.
High friction: High friction may affect the response speed and detail performance of the horn.

• Ferrite is most affordable material and most common in today's speakers
• Neodymium magnets are smaller and have far greater magnetic flux than ferrite
• Neodymium magnets are widely considered better for sound quality than ferrite, but not as durable and is more expensive

Everbeen Magnet offers a series of magnet products, all of which have first-class quality. We are committed to providing customers with high-quality products, always putting customers first and specializing in producing and selling magnets of various colors and sizes.

Ferrite products are known for their high resistance to demagnetization, making them well-suited for use in applications where magnetic stability is important. They are also relatively easy to magnetize and can maintain their magnetic properties at high temperatures, which makes them an excellent choice for use in high-temperature environments.

Overall, ferrite products are a cost-effective and versatile type of magnet that is widely used in modern technology and industry. Their excellent magnetic properties, combined with their resistance to corrosion and demagnetization, make them a valuable resource in a wide range of applications.

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