HW-404 Class D Stereo Audio Amplifier Module – Compact, Powerful & Energy Efficient

The HW-404 Class D Amplifier Module is the perfect compact solution for your audio amplification needs. Designed for hobbyists, DIYers, and audio enthusiasts, this mini board delivers high-quality stereo sound with minimal power consumption thanks to advanced Class D efficiency.

Whether you're building a Bluetooth speaker, upgrading your home audio, or designing a small sound system, the HW-404 gives you clean output without heating up – all in a tiny footprint.

Key Features:

• ✅ True Class D Amplifier Module
  Low distortion, high efficiency, and excellent sound clarity.

• ✅ Stereo Output
  Delivers 2 x 3W to 2 x 5W depending on input voltage and speaker impedance.

• ✅ Wide Voltage Support
  Operates between 3.7V to 5V DC – ideal for USB power banks and battery-powered projects.

• ✅ Ultra-Compact Size
  Easy to fit in enclosures, DIY projects, or embedded systems.

• ✅ Low Heat Generation
  Works efficiently without requiring bulky heatsinks.

📦 Product Specifications:

• Model: HW-404

• Amplifier Type: Class D

• Output Power: Up to 2 × 30W (at 12V, 4Ω speakers)

• Working Voltage: 3.7V – 5V DC

• Channel: Stereo (2.0)

• Board Size: Approx. 29mm x 21mm

• Volume Control: Not included (requires external potentiometer if needed)

⚡ Perfect For:

• Portable Bluetooth Speakers

• Battery-Powered Audio Systems

• Arduino & Raspberry Pi Audio Projects

• Mini Home Audio Setups

• USB-Powered Audio Devices

💡 Why Choose Us?
We offer genuine, quality-tested components with trusted support. Buy with confidence from a local electronics store dedicated to DIYers, students, and professionals in Pakistan.