In order to facilitate understanding, we will temporarily compare the size of the horn size to the size of the drum, the larger the drum, the more momentum, of course, the greater the energy required (that is, the so-called thrust, due to the length of the problem we will talk about later), and the smaller the drum, the same strength, the more brittle the sound, the better the transient.

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

Highlight: The large outside diameter of the speaker indicates that the sound field will be relatively wide, but it does not directly determine the quality of the headset, but also depends on the comprehensive performance of the headset cavity, tuning hole and other factors.

Impedance or sensitivity who is difficult to drive the headset culprit

First, briefly explain the meaning of these two parameters impedance: refers to the obstruction of AC current in a circuit with resistance, inductance and capacitance, the unit is Ω. Sensitivity: refers to the sound pressure level that can be emitted when the earphone input 1 milliwatt power (at 1 KHZ as the standard), that is, the volume size. 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 noise. High sensitivity means that the power required to reach a certain sound pressure level is small, and when the sensitivity is low, the power required is naturally large, so in fact, the sensitivity is the factor that affects whether the headset is easy to push.

Highlight: If you usually listen to music on your phone, see 16Ω, 32Ω do not need to hesitate, you can rest assured to choose them, if the sensitivity is as high as 110dB or more, congratulations, you have earned ~