Can you not hear your audio? Implement this IS31AP4991-GRLS2-TR class D amplifier from ISSI. It has a maximum load resistance of 8 Ohm. It has a differential input signal and a differential output signal. It has a 1-channel mono output. This audio amplifier has a minimum operating temperature of -40 °C and a maximum of 85 °C. Its typical PSRR is 77 dB. This device uses a single power supply.