If your output sound needs to be improved, this TDA7266D13TR class D amplifier from STMicroelectronics will do the trick. Its maximum power dissipation is 25000 mW. It has a maximum load resistance of 8 Ohm. It has a single input signal and a differential output signal. It has a 2-channel stereo output. This audio amplifier has a temperature range of 0 °C to 70 °C. This device uses a single power supply. Its typical PSRR is 56 dB.