Inquiry Before Buying Global Class D Audio Amplifier Market Size, Share & Trends Analysis By Amplifier Type (Mono-Channel, 2-Channel, 4-Channel, 6-Channel, and Others), Device (Television Sets, Home Audio Systems, Desktop & Laptops, Automotive Infotainment Systems, and Others), and End-use (Automotive, Consumer Electronics, and Others), Forecast (2021-2027)