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Upgrade your DIY or portable audio projects with the Mini USB Digital Audio Amplifier Module, a compact and efficient 3W+3W stereo sound board. This Class-D amplifier is powered via USB and designed to deliver crisp and clear dual-channel output while maintaining a high-efficiency power profile.
Ideal for USB-powered speakers, Raspberry Pi/Arduino sound systems, or any small-scale audio project, this module operates at 2.5–5.5V (standard USB 5V) and delivers 3W output per channel into 4-ohm speakers. Its filterless design reduces external components while maintaining excellent sound quality and low heat dissipation.
🔧 Key Features
- 3W output per channel with dual-track stereo sound
- USB-powered operation from 2.5V–5.5V
- 90% efficiency with Class-D architecture
- Filterless compact design with low noise
- Includes 200mm USB cable for flexible mounting
- Ideal for DIY audio systems, portable speakers, and classroom kits
📐 Technical Specifications
| Type | Mini USB Digital Audio Amplifier |
| Output Power | 3W + 3W (Stereo) |
| Operating Voltage | 2.5V – 5.5V DC (USB) |
| Input Impedance | 2kΩ |
| Output Impedance | 4Ω |
| Frequency Response | 50Hz – 20KHz |
| Efficiency | Up to 90% |
| Amplifier Class | Class-D |
| Noise Level | Low |
| Design | Compact, Filterless |
| Cable Length | 200mm |
📌 Applications
- DIY USB desktop speakers
- Portable Bluetooth speaker builds
- Arduino or Raspberry Pi audio outputs
- Compact stereo systems and boomboxes
- STEM and school electronics projects
💡 Why Choose This Module?
The Mini USB Digital Audio Amplifier Module offers an excellent balance of size, power, and performance. With stereo output, simple USB power input, and high efficiency, it’s ideal for both hobbyists and learners needing high-quality audio in small spaces.
📦 Package Includes
- 1 × Mini 3W+3W USB Audio Amplifier Module
- 1 × USB Cable (200mm)
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