XH‑M548 Bluetooth Dual‑Channel TPA3116D2 Digital Power Amplifier Board (2 × 120 W, Bluetooth 4.0, 12–24 V DC)
Description:
High-efficiency stereo Class‑D amplifier based on the Texas Instruments TPA3116D2 chip. Supports Bluetooth audio streaming and delivers up to 120 W per channel when supplied with sufficient power. Ideal for DIY speaker systems, home audio, and portable sound projects.
Key Features:
- 2 × 120 W stereo output (60 W per channel) into 4 Ω
- Built-in Bluetooth 4.0 audio input (approx. 10 m range)
- Operates from 12 V to 24 V DC
- Easy plug-and-play setup with onboard audio pairing
- Built-in protections: over-voltage, over-current limiting, and DC fault detection
- Compact and durable PCB with standard connectors
Technical Specifications:
| Feature | Specification |
|---|---|
| Model | XH‑M548 |
| Amplifier Chip | TPA3116D2 (Class‑D) |
| Operating Voltage | 12 V–24 V DC |
| Output Power | Up to 120 W per channel (60 W/channel) |
| Speaker Impedance | 4 Ω – 8 Ω recommended |
| Bluetooth Version | Bluetooth 4.0 (A2DP, HFP, AVRCP, etc.) |
| Bluetooth Range | Approx. 10 m |
| Efficiency | High efficiency, low idle current |
| Frequency Response | 20 Hz – 20 kHz |
| Protections | Over-voltage, over-current, DC detect |
| Dimensions | ~100 × 80 × 20 mm |
| Weight | ~79 g |
Usage Notes:
- Use a stable 12–24 V DC power supply rated for at least 5 A for optimal performance.
- Connect speakers to the output terminals following correct polarity.
- Ensure adequate ventilation or heatsinking when used at high power.
- Bluetooth pairing is automatic—device switches to Bluetooth input when detected.
- Board includes standby pin for power control if needed.
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