Generally, Class B amplifiers have more distortion, mainly linear distortion, which is manifested as the asymmetry of the upper and lower two half waveforms. In addition, there is crossover distortion, which is manifested as the overshoot waveform of various shapes at the joint of the upper and lower two half waves. There is also the clipping distortion, that is, the top of the waveform is a flat waveform. These are things that require manufacturing experience to improve, and being able to make quality amplifiers is not an easy thing.