| Feature | Details |
| Output Power | 50W + 50W (Stereo) |
| Bluetooth Version | 5.0 High-Fidelity |
| Operating Voltage | DC 9V – 24V |
| Audio Input | Bluetooth + 3.5mm AUX |
| Channel Type | 2.0 Dual Channel |
| Protection | Over-voltage, Under-voltage, Overheat, Short-circuit |
High-Fidelity Stereo Audio in a Compact Module The CA-502MT Bluetooth Digital Amplifier Board is a versatile and powerful 2.0 channel stereo module designed for DIY audio enthusiasts and professional installers. Delivering a robust 50W per channel, this amplifier provides clean, distortion-free sound suitable for home bookshelf speakers, custom portable Bluetooth speakers, or upgrading vintage audio systems. At Robogears, we recommend this board for its excellent thermal management and stable wireless performance.
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Seamless Bluetooth 5.0 Connectivity Equipped with a high-performance Bluetooth 5.0 chipset, the CA-502MT ensures a fast and stable wireless connection with a range of up to 15 meters. It is fully backwards compatible with older Bluetooth versions and features an automatic reconnection function. The board also includes a standard 3.5mm AUX input, allowing you to switch easily between wireless streaming and wired audio sources like PCs or MP3 players.
Precision Controls and Industrial Build The CA-502MT is designed for total user control, featuring high-quality potentiometers for Volume, Treble, and Bass adjustment. This allows you to fine-tune the audio profile to match your specific speakers and listening environment. The board is built on a high-grade PCB with a massive aluminum heat sink to ensure reliable operation even during extended high-volume playback sessions.
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:
Dual 50W Output: Powerful enough to drive medium-sized passive speakers.
Bluetooth 5.0 + AUX: Dual input modes for maximum versatility.
Treble & Bass Tuning: Dedicated knobs for custom sound equalization.
Wide Voltage Range: Compatible with standard 12V to 24V DC power adapters.
Plug & Play Setup: Easy-to-use screw terminals for speaker and power connections.
Product Model: CA-502MT
Amplification Type: Class D
Output Impedance: 4$\Omega$ to 8$\Omega$
Frequency Response: 20Hz – 20kHz
Supply Voltage: DC 9V – 24V (3A - 5A recommended)
Signal to Noise Ratio: 95dB
Dimensions: ~89mm x 60mm x 21mm
Weight: ~120 Grams
Installation Tip from Robogears: For the best performance and to reach the full 50W output, use a 24V 5A DC power supply. If you are using standard 4-ohm speakers, ensure your power supply has sufficient current to prevent audio clipping.