How to use the horn speaker?

In order to facilitate understanding, we temporarily compare the size of the horn to the size of the drum surface. The larger the drum surface, the more powerful the momentum, of course, the greater the energy required (that is, the so-called thrust, due to space problems, we will discuss this later. chat), and the smaller the drum head, the crisper the sound and the better the transient under the same force.

    In addition to affecting the sound quality, the size of the speaker also affects the wearing experience. The larger the speaker size, the larger the earphone, and the more difficult it is to wear it in the ear. On the contrary, the earphone will be made smaller and more comfortable to wear.

    The key point: the large outer diameter of the speaker means that the sound field will be relatively wide, but it does not directly determine the quality of the earphone, but also depends on the comprehensive performance of the earphone cavity, tuning hole and other factors.

    2. Impedance and sensitivity

    Impedance or Sensitivity Who is the culprit for the difficulty in driving headphones

    First briefly explain the meaning of these two parameters Impedance: refers to the resistance to AC current in a circuit with resistance, inductance, and capacitance, and the unit is Ω. Sensitivity: refers to the sound pressure level that can be emitted when the earphone inputs 1 mW of power (1KHz is the standard), that is, the volume. Generally speaking, the smaller the impedance, the higher the sensitivity.

    At the same time, the easier the headset is to drive, the easier it is to make a sound. High sensitivity means that the power required to reach a certain sound pressure level is small. When the sensitivity is low, the power required is naturally large. Therefore, in fact, the sensitivity is the factor that affects whether the earphone is easy to push.

    Focus: If you usually listen to songs on your mobile phone, you don’t need to hesitate to see 16Ω and 32Ω, you can choose them with confidence. If the sensitivity is as high as 110dB or more, congratulations, you have earned it~