音箱的失真度定义与放大器的失真度基本相同

The distortion degree definition of the speaker is basically the same as the distortion degree of the amplifier, the difference is that the amplifier input is an electrical signal, the output is an electrical signal, and the speaker input is an electrical signal, and the output is a sonic signal.
音箱的失真度定义与放大器的失真度基本相同，不同的是放大器输入的是电信号，输出的还是电信号，而音箱输入的是电信号，输出的则是声波信号。

Therefore, the distortion degree of the speaker refers to the distortion of the electroacoustic signal conversion.
所以音箱的失真度是指电声信号转换的失真。

The distortion allowed range of sound waves is within 10%, and the general human ear is not sensitive to distortion within 5%.
声波的失真允许范围是10%内，一般人耳对5%以内的失真不敏感。

It is best not to buy a speaker with distortion greater than 5%.
大家最好不要购买失真度大于5%的音箱。

5.
5．

Signal-to-noise ratio
信噪比

This index refers to the ratio of the normal sound signal played back by the speaker to the noise signal.
该指标指音箱回放的正常声音信号与噪声信号的比值。

The signal-to-noise ratio is low, the noise is serious when the small signal is input, and the sound in the whole range is obviously cloudy and unclear, and the sound quality is seriously affected.
信噪比低，小信号输入时噪音严重，在整个音域的声音明显变得浑浊不清，不知发的是什么音，严重影响音质。

Speakers with a signal-to-noise ratio lower than 80dB (including subwoofers lower than 60dB) are not recommended to buy.
信噪比低于80dB的音箱（包括低于60dB的低音炮）建议不购买。