The main parameters of the loudspeaker

The following multimedia speaker manufacturers to introduce the main parameters of the speaker situation.

　　1. Directionality

　　Multimedia loudspeaker manufacturers: directivity refers to the loudspeaker in different directions in the sound pressure radiation capacity with the frequency of the characteristics of the change, or refers to the loudspeaker to the space in all directions of the ability to radiate sound waves. The higher the frequency of the signal input to the speaker, the stronger the directivity.

　　2. Total quality factor

　　Multimedia loudspeaker manufacturers: the total quality factor of the loudspeaker, also called Qts value, is used to reflect the slow energy consumption of its vibration system, i.e. the loss of the vibration system.

　　3.Equivalent volume

　　Multimedia loudspeaker manufacturers: the equivalent volume of the loudspeaker is the equivalent air volume of the loudspeaker vibration system. The larger the diameter of the horn, the larger its equivalent volume.

　　4. Magnetic induction strength and magnetic flux

　　Magnetic induction, also called magnetic gap strength, is used as a quality mark to indicate the strength of the magnetic field in the air gap of a horn. The magnetic flux is equal to the product of the magnetic induction strength and the average value of the air gap area.

　　5. Equivalent vibration radius

　　Multimedia speaker manufacturers: the equivalent vibration radius of the horn, also known as the effective area of the diaphragm, said to contribute to the acoustic radiation area, generally refers to the centre of the diaphragm to the middle of the folded ring length.

　　6. Linear range

　　The linear range of the horn refers to the large linear displacement of the diaphragm. When the speaker works, if the diaphragm displacement exceeds the linear range value, the sound distortion will become larger.

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　　Frequency:

　　Multimedia speaker manufacturers: the frequency characteristics of a loudspeaker means that when the signal voltage input to the loudspeaker is constant, the output sound pressure on the reference axis of the loudspeaker varies with the frequency of the input signal. It is the frequency response (referred to as frequency response) with the frequency of the curve, reflecting the speaker's ability to radiate sound waves of different frequencies.

　　Generally the frequency range of a woofer is between 20 HZ ~ 3 kHZ, a midrange horn is between 500 Hz ~ 5 kHz, and a tweeter is between 2 ~ 20 HZ ~ 3 kHz.

　　Directionality:

　　Multimedia speaker manufacturers: for different directions of radiation, the speaker's sound pressure frequency characteristics are different, known as the directivity of the speaker. Related to the aperture of the speaker. When the aperture is large, the directivity is sharp, and when the aperture is small, the directivity is wide. Directivity is also related to frequency. Generally speaking, there is no significant directivity for low frequency signals below 250Hz. There is significant directivity for high frequency signals below 1.5kHz.

　　Sensitivity (dB/watt):

　　Multimedia speaker manufacturers: the sensitivity of a speaker is usually the sound pressure measured 1m in front of the speaker axially when a noise voltage of 1W input power is input. Sensitivity is a measure of whether the speaker can meticulously reproduce the details of the audio signal. The higher the sensitivity, the better the speaker responds to all the details in the audio signal.

　　Distortion:

　　Multimedia speaker manufacturers: there are many kinds of loudspeaker distortion, including harmonic distortion (mostly caused by uneven magnetic field of the loudspeaker and the distortion of the vibration system, often occurring in the low frequency), intermodulation distortion (the simultaneous addition of two different frequency signals on the loudspeaker to modulate each other caused by deterioration of the sound quality) and transient distortion (the inertia of the vibration system to keep up with the signal, resulting in the distortion of the signal). Harmonic distortion is the increase in harmonic components not present in the original signal during playback. Harmonic distortion in loudspeakers arises from non-linear distortions such as uneven magnetic fields of magnets, diaphragm characteristics, voice coil displacement, and so on.