How to Build High-Quality Speakers with Rare Earth Magnets?

[NGage22R]

Homework Statement

We have to make a speaker with 4 rare Earth magnets, and whatever materials we can buy or find . How to make the coil? What should we use for the cone of the speaker? Our ideas are to create a 5.1 or 2.3 surround sound speaker system with excellent mid-range sound quality.

Homework Equations

Unknown

The Attempt at a Solution

Using guides off the internet and materials from radio-shack to create the speakers.

 

[vk6kro]

Did the assignment say the speaker had to be moving coil?
Would it be easier to make if the magnet was moving?


I don't know if this would work, but the bottom of some large soda drink containers is thin plastic, it is very strong and it is concave. If you supported the sides of this (after cutting it off the bottle) on soft foam and glued a magnet to the centre of it, maybe you could attract the magnet with a coil wound on some soft iron.

 

[Mene]

I would approach this task by first understanding the basic principles of how a speaker works. This includes the role of the magnet, coil, and cone in producing sound. I would also research the properties of rare Earth magnets and their potential impact on the sound quality.

To make the coil, I would suggest using copper wire as it is a good conductor of electricity and is commonly used in speaker coils. The thickness and length of the wire will depend on the desired impedance and power handling of the speaker.

For the cone, it is important to choose a material that is lightweight, yet rigid enough to produce clear sound. Some options could include paper, plastic, or even metal. The shape and size of the cone will also play a role in the sound quality, so careful consideration should be given to this aspect.

In order to create a 5.1 or 2.3 surround sound speaker system, it is important to carefully design and arrange the speakers to ensure proper sound distribution and coherence. This may require additional research and experimentation to achieve the desired result.

Overall, creating high-quality homemade speakers with rare Earth magnets is certainly possible, but it will require careful planning, experimentation, and a good understanding of the principles involved. I would also recommend seeking guidance from experienced audio engineers or consulting with professionals in the field for additional support and advice.