| Feature | Details |
| Amplifier Chip | Dual TPA3116D2 Digital IC |
| Output Power | 100W (Subwoofer) + 50W x 2 (Stereo) |
| Bluetooth Version | 5.0 High-Fidelity |
| Channel Type | 2.1 Channel (Left + Right + Bass) |
| Operating Voltage | 12V – 24V DC |
| Input Methods | Bluetooth + 3.5mm AUX |
High-Fidelity Audio Power for the Modern Home Theater The CA-3166B Bluetooth Digital Amplifier Board is a powerhouse designed for audiophiles and DIY enthusiasts who demand high-output performance in a compact form factor. Utilizing the renowned TPA3116D2 Class-D amplifier chip, this board delivers a crisp, clear, and powerful 2.1 channel audio experience. Whether you are building a custom home theater system or a high-performance portable boombox, the CA-3166B provides the raw power and wireless convenience required for a professional setup.
Powerful 2.1 Channel Sound Stage This board features a triple-output design: two channels providing 50W each for your satellite (left and right) speakers and a massive 100W dedicated channel for your subwoofer. This ensures deep, earth-shaking bass without sacrificing the clarity of your mid and high frequencies. The onboard high-quality filter inductors and large-capacity capacitors ensure stable power delivery even during peak volume levels, preventing audio clipping and distortion.
Dual Input and Precision Tuning The CA-3166B is equipped with Bluetooth 5.0, offering a stable wireless range of up to 10-15 meters with minimal latency. For traditional wired connections, it also includes a standard 3.5mm AUX input. The board is designed for total control, featuring five precision potentiometers for Master Volume, Subwoofer Volume, Subwoofer Frequency, Stereo Treble, and Stereo Bass. This allows you to tune the audio profile specifically to match your room's acoustics and your speaker's capabilities.
Key Highlights:
Dual TPA3116D2 Architecture: Highly efficient digital amplification with low heat generation.
Bluetooth 5.0 Wireless: Seamless pairing with smartphones, tablets, and smart TVs.
Extensive Tuning Controls: Dedicated knobs for bass, treble, and subwoofer crossover frequency.
Wide Voltage Support: Runs on any 12V to 24V DC power source (Laptop adapters work perfectly).
Industrial Build Quality: Large aluminum heat sink for continuous high-load operation.
Product Model: CA-3166B
Chip Type: Class D (TPA3116D2)
Supply Voltage: DC 12V – 24V (5A or higher recommended)
Output Impedance: 4$\Omega$ to 8$\Omega$
Subwoofer Frequency Range: 20Hz – 200Hz
Signal to Noise Ratio: 100dB
Switching Frequency: 1.2 MHz
Protections: Overvoltage, Undervoltage, Overheating, DC Detection, Short Circuit
Board Dimensions: ~101mm x 100mm x 25mm
Power Tip from Robogears: For the best performance and to reach the full 100W output, use a 24V 5A DC power supply. If you use a 12V supply, the output power will be lower, but it is still sufficient for smaller bookshelf speakers.
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Note: The product images provided are for illustration purposes only. The actual product may vary slightly in terms of design, color, or component layout due to manufacturing updates, but technical specifications will remain as described.