The super-balance of pass means that a complete waveform can be obtained by inputting a complete signal at one pole, and the input positive and negative signals are clamped and checked with each other. The biggest feature (patent) of passX.8 series is: adding a constant current circuit, which makes the output speed of positive phase much higher than that of negative phase! The output speed of the power amplifier is faster, the power is higher, and the sound is closer to the propagation characteristics of sound waves in the air, which makes the ears more comfortable. About the sound quality: the bass is fierce, far more powerful than the general power amplifier, and the middle and high frequency parts are very resistant to listening.