PAM8403 Mini Stereo Amplifier Module – 5 V Class‑D 2 × 3 W Audio Board for DIY Speakers

Boost your projects with crisp stereo sound! The PAM8403 Class‑D amplifier delivers 2 × 3 W output from a simple 5 V USB or battery supply—perfect for portable speakers, Arduino music gadgets, and retro radio upgrades. Ultra‑efficient chip runs cool without heatsink, features onboard volume potentiometer pins, and drives 4 Ω–8 Ω speakers with low distortion. Compact, breadboard‑friendly, and noise‑free for makers, students, and audiophiles.