PAM8403 Bluetooth 5.0 HD Audio Amplifier Board Power DIY Wireless Speaker Class D Amplifiers Module Dual Channel Stereo 2*5W DC5V(Green)

The PAM8403 is a 5V, two-channel stereo, class-D audio amplifier that delivers 3W+3W output, ensuring high-quality sound. Its filterless design allows direct speaker drive without low-pass output filters, reducing system cost and PCB area. You can power it using a mobile charger or computer USB plug. It supports two 3/5 watt speakers on both L and R channels, with audio input connected to the LTR portion.

Compared to Class-AB amplifiers, the PAM8403 is more efficient, extending battery life and making it ideal for portable applications.

**Note**: - Use shielded wires for input audio for optimal performance. - Ensure a proper filtered power supply with good filter capacitors. - Avoid shorting speaker wires to prevent IC damage. - Do not exceed a 5.5V power supply to avoid damaging the IC. Use a regulated power supply.