Global Class D Audio Amplifier Market is valued approximately at USD 3.15 billion in 2023 and is anticipated to grow with a healthy growth rate of more than 8.06% over the forecast period 2024-2032.

Class D amps are simple – just take an input, and use that to modulate a square wave with PWM. Send this PWM signal to a MOSFET or something, and you have the simplest class D amp in existence.