qisheng 11 power amplifier is good. Qisheng 11 power amplifier adopts advanced audio technology and design, which can provide clear and realistic sound quality. It has good audio resolution and dynamic range, and can restore the details and emotions of music. And provide sufficient volume and dynamic expression. This makes it very suitable for large-scale concerts, performances and home theaters. Odd sound amplifier AV11 is a high-performance audio amplifier, and its circuit diagram is well designed, which can bring high-quality audio experience to users.