A high-fidelity power amplifier is typically composed of three primary stages that work in harmony to deliver clear sound:
Transistors conduct for the full 360° cycle; generates significant heat. Poor (High Distortion)
To prevent signal loss, the amplifier's input impedance should be significantly higher (ideally 10x) than the source's output impedance. Designing Audio Power Amplifiers
The "front end" that accepts the weak input signal and provides the necessary voltage gain.
There is a growing push for "green" amplifiers that minimize power consumption without sacrificing high-resolution output. Next Steps for Designers A high-fidelity power amplifier is typically composed of
The landscape of audio design is shifting toward efficiency and intelligence:
Modern amplifiers increasingly incorporate Digital Signal Processing (DSP) for real-time equalization and filtering. There is a growing push for "green" amplifiers
Only conducts for 180° of the cycle; prone to "crossover distortion". Excellent (if well-designed)