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Headphone Knowledge Popularization--Dynamic Coils

2022-06-22

Headphone Knowledge Popularization--Dynamic Coils

Moving coil headphones and moving iron headphones are the two words we usually talk about when talking about headphones. Many friends who have not really contacted and understood headphones may feel a little familiar and unfamiliar with these two words. Familiar is often listening to others, but unfamiliar is, what is this?

So today, let`s talk about moving coil and moving iron with the editor. What exactly are they?

moving coil

Dynamic earphones are the most common in daily life. Nameless earphones with prices as low as a few yuan, and big-name earphones with prices as high as one or two thousand yuan, such as Sony WI-1000X, are all dynamic earphones.

So what is a moving coil? What are its characteristics? What is its working principle? With these three questions, let's walk into the "moving coil world" together. (Why after writing this sentence, there is a sense of being close to the animal world)

First of all, let`s start with a piece of junior high school physics knowledge: the reason why sound can be emitted and heard by human ears is because vibration produces sound, so if there is sound, there must be a source of vibration. In the internal structure of the earphone, there is a layer of film, which is the vibration source, and because the film is attached with a guide coil, the guide coil and the film as a whole vibrate as a vibration source, so it is called a moving coil.

This is the basic origin and working principle of the moving coil.

a40 pro (3)

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