The L3 features a linear phase crossover which doesn't introduce phase distortion between the frequency bands. The crossover points are selectable by the user.

L3特有的线性相位交点可以保证在常用波段之间不产生失真，而交点是由用户选定的。

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This paper defines phase and group delay distortion of audio system based on point view of linear system analysis and the physical meanings of group delay is discussed.

本文从线性系统分析的角度定义了音响系统的相位和群延迟失真，并讨论了所定义的群延迟物理意义。

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However, if the phase change is non-linear, then the non-sinusoidal signals will have a serious phase distortion.

然而，如果相位的变化是非线性的，那么对非正弦信号会产生严重的相位失真。

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