Positive and negative halves of the signal dealt with by different parts of the circuit, the output devices switching continually. Runs cooler, but the sound is not as pure.
an element and more are never away from
A power amplifier design in which positive and negative polarities of an audio waveform pass through separate output devices that conduct only when needed. It is difficult to eliminate all distortions created when the devices transition from one polarity to the other (crossover distortion), which has relegated this design to low quality audio and other applications of power amplification where efficiency and cost are of greatest importance.