XH‑M190 Tube Digital Audio Board (TPA3116D2, 2×100 W, DC 12–24 V)
Description:
High‑performance Class‑D stereo amplifier board based on the TPA3116D2 dual‑channel chip. Delivers up to 100 W per channel (into 4 Ω), offering high efficiency, low distortion, and clear sound output. Ideal for DIY HiFi speakers, car audio, and home theater systems.
Key Features:
- Dual-channel Class‑D amplifier: 2 × 100 W output
- Wide input voltage: DC 12–24 V
- High efficiency with low heat generation
- Compatible with 4–8 Ω speakers
- Built-in protections for safe operation
Technical Specifications:
| Feature | Specification |
|---|---|
| Model | XH‑M190 |
| Amplifier Chip | TPA3116D2 (Class‑D) |
| Operating Voltage | DC 12–24 V |
| Output Power | 2 × 100 W (at 4 Ω) |
| Speaker Impedance | 4–8 Ω |
| Signal-to-Noise Ratio | ~100 dB |
| Frequency Range | 14 Hz – 100 kHz |
| Input Resistance | ~51 kΩ × 2 channels |
| Protection Features | Over-voltage, over-current, short-circuit, DC detect |
| Dimensions | 104 × 64 × 24 mm |
| Weight | ~97 g |
Usage Notes:
- Use a stable DC power supply with sufficient current (minimum 5 A recommended).
- Ensure correct speaker polarity and impedance matching for best performance.
- Provide adequate cooling or ventilation during high-power use.
- Built-in protection prevents damage under overload conditions.
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