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  • What's a Class D speaker amp and how does it differ from an analog amp?
    • The Class D speaker amp's drive output stage utilizes high efficiency PWM drive (H or L) based on the output signal level. This results in low power loss and high efficiency (85-90%).In contrast, conventional analog amps feature Class AB output, requiring (among other things) a bias current. The result is low efficiency and high heat generation, requiring an external heat sink.