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Headphone knowledge science - moving coil

2022-02-25

Headphone knowledge science - moving coil

Moving coil headphones and moving iron headphones are two words we often say when we talk about headphones. Many friends who have no real contact and understanding of headphones may feel a little familiar and unfamiliar with these two words. The familiar is often heard from others, the unfamiliar is, what is this?

So today, let's talk about the moving circle and moving iron with the editor. What are they?

Moving coil
Dynamic headphones are the most common in daily life. Unnamed headphones as low as a few yuan, and big-name headphones as high as one or two thousand yuan, such as Sony WI-1000X, are all dynamic headphones.
So what is a moving coil? What are its characteristics? How does it work? With these three questions, let's walk into the "moving circle world" together. (Why after writing this sentence, there is a feeling 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 the human ear can make and hear sound 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. Since the film is attached with a guide coil, the guide coil and the film vibrate as a vibration source as a whole, so it is called a moving coil.

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

Headphone

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