Different Types Of Speaker Magnets
Speaker magnets come in all sort of different sizes and shapes, but the materials that they’re made of can really make a difference in the way the speaker sounds.
Nowadays, all kinds of speakers have a permanent magnet fixed behind the centre of the speaker cone. It helps to interact with the changing magnetic field generated from the electrical coil.
The speaker manufacturer uses different kinds of magnets in the speakers of various sizes. It makes the quality of tone better.
When the magnet in the speaker interacts with the changing magnetic field, the pulling and pushing forces move the speaker cone in and out rapidly. It helps in producing the sound.
For different sizes of speakers, another magnet is used. Let us discuss the various types of speaker magnets.
Alnico is an alloy of aluminum, nickel, and cobalt. It is the magnetic material used in original speakers in all vintage amps. This is what gives those old amps their sought-after tone. Warm and sweet at low volumes which have a faster reaction time while playing. Alnico was used for decades due to its strong magnetic field, but once it started to become pricey, a lot of manufacturers switched to ceramic magnets.
Ceramic magnets were developed as a less expensive alternative to Alnico. The advantage of ceramic is that they are more versatile and offer a wider range of tone. The downside is that speakers with ceramic magnets typically weigh more, but can usually handle more power and sound better at high volumes.
Neodymium is the newest speaker magnet material. It’s not as expensive as Alnico but it does cost more than ceramic speakers. Some advantages are its weight being about 50% less than other speakers while having stronger magnetic properties. Speakers made from neodymium respond to a player’s touch similar to Alnicos and have a well-balanced frequency response.
Ferrite, Alnico, and Neodymium are three different types of magnets used. Ferrite is one of the most common and is more aggressive of a speaker. Alnico is revered for its sweetness and buttery tone that sounds particularly musical. Finally, we have neodymium. The newest of magnet types, neodymium is starting to become more popular. The main benefit of a neo speaker is its lightweight characteristics. Tone wise, neo speakers are described as being very bright but can be countered by mixing and matching speaker types.
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