Impedance: It refers to the ratio of the voltage and current of the speaker input signal. The input impedance of the speaker is generally divided into two types: high impedance and low impedance. Those higher than 16Ω are high impedance, those lower than 8Ω are low impedance, and the standard impedance of the speaker is 8Ω. In the case of the same power amplifier and output power, low-impedance speakers can get a larger output power, but the impedance is too low will cause underdamping and bass degradation and other phenomena. Therefore, although this index has nothing to do with the performance of the speaker, it is best not to buy low-impedance speakers. The recommended value is the standard 8Ω. The impedance of headphones is generally high impedance-32Ω is very common. The impedance of the power amplifier can generally be marked as equivalent impedance, such as 130W output under 4Ω, which is roughly equivalent to the equivalent 80W output. Under normal conditions, conductors have some effect of preventing current flow, and the degree of resistance is called "resistance". The unit value is "ohm" and the code is "Ω". In an AC circuit, in addition to resistance, there are inductance and capacitance, etc., which hinder the effect of current. The part that prevents the effect of AC current is generally called "impedance". Wireless earphone,Mono Earphone, Wireless Bluetooth Earphone Shenzhen PuFang Technology Co., Ltd. , https://www.hytelus.com
Impedance in sound
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