Cascade amplification Successively using two or more amplification systems. Most radio and audio products have more than one stage of amplification.
级联放大逐次使用两个或多个放大系统。大多数无线电产品和音频产品使用两次以上放大。
2
Why audio buffer needs only one stage while video buffer needs two stages for amplification?
为何音频电路仅需要单级放大电路，而影像电路必须两级反向。
3
The main disadvantage of push-pull class A amplification over single-ended class A, is the necessity for a phase splitter stage to generate the oppositely-phased drive signals.