Audio schematic circuit presented in this diagram is a stereo Class D audio power amplifier provides Class AB amplifier performance with Class D efficiency. This audio amplifier schematic circuit is based on MAX9741 audio amplifier chip which can provide a maximum output power around 12W on each channel (2 channels ) on a 8 ohms load impedance .

The MAX9741 offers two modulation schemes: a fixed-frequency mode (FFM), and a spread-spectrum mode (SSM) that reduces EMI-radiated emissions. Main features of the MAX9741 are : Low-EMI Class D Amplifier , Spread-Spectrum Mode Reduces EMI , Passes FCC EMI Limits with Ferrite Bead Filters with 0.5m Cables , 12W+12W Continuous Output Power into 8Ω , Low 0.1% THD+N , High PSRR (80dB at 1kHz), 10V to 25V Single-Supply Operation , Differential Inputs Minimize Common-Mode Noise , Short-Circuit and Thermal-Overload Protection.
For this audio power amplifier is required few external components and a power supply between 10 and 25 volts .
Audio power amplifier based on this audio amplifier IC can be used in audio applications for TVs , LCDs , pc speakers , etc .