| Feature | Details |
| Amplifier Chip | TPA3116D2 Digital Power IC |
| Max Output Power | 250W (Mono Subwoofer) / 100W Nominal |
| Bluetooth Version | 5.0 High-Fidelity |
| Operating Voltage | DC 12V – 24V |
| Channel Type | Mono Subwoofer (BTL Bridge Design) |
| Audio Input | Bluetooth + 3.5mm AUX Input |
Professional Grade Bass for Custom Audio Builds The CA-3169B High-Power Subwoofer Amplifier Board is a specialized audio solution designed for deep, impactful bass performance. Engineered with the high-efficiency TPA3116D2 digital chip, this board is configured in BTL (Bridge-Tied Load) mode to deliver massive power to a single subwoofer. Whether you are building an active home subwoofer or a high-bass vehicle audio system, the CA-3169B provides the sustained power and thermal stability required for professional-grade low-frequency reproduction.
Lossless Bluetooth 5.0 Connectivity Experience the freedom of wireless audio without compromising on quality. The integrated Bluetooth 5.0 module ensures a stable, high-bitrate connection with a range of up to 10-15 meters. This board also includes a standard 3.5mm AUX input for wired audio sources. Switching between Bluetooth and AUX is automatic, allowing for a seamless user experience in diverse home theater or DIY portable speaker setups.
Advanced Thermal and Signal Management High power output requires high-level cooling. The CA-3169B features a large, industrial-grade aluminum heat sink and high-quality filter inductors to manage the thermal load of continuous 250W peak operation. The board includes dedicated potentiometers for Volume Control and Frequency Adjustment (Crossover), allowing you to tune the bass output to perfectly match your satellite speakers and room acoustics.
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.
Key Highlights:
Bridged TPA3116D2 Power: Maximizes current delivery for heavy-duty subwoofer drivers.
Adjustable Crossover: Fine-tune the low-pass frequency to get the perfect "thump."
Wide Voltage Range: Compatible with any 12V to 24V DC power source.
Low Noise Design: Onboard high-performance capacitors filter out power supply ripples.
Compact & Rugged: Designed to be easily mounted inside speaker enclosures.
Product Model: CA-3169B
Amplification Class: Class D
Supply Voltage: DC 12V – 24V (4A - 10A recommended for max power)
Output Impedance: 2$\Omega$ to 8$\Omega$
Frequency Range: 20Hz – 200Hz (Adjustable Low Pass)
Signal to Noise Ratio: 100dB
Protection Features: Short-circuit, Overheat, and Power Anti-reverse protection
Dimensions: ~100mm x 70mm x 25mm
Power Tip from Robogears: To achieve the maximum 250W peak output, we highly recommend using a 24V 10A DC power source and a 2-4 ohm high-quality subwoofer. Using a 12V power supply will result in lower output wattage but remains safe for smaller setups.