Description
CA-3116-200W Class-D Stereo Audio Amplifier Board | 2×100W Peak | 12V–24V DC
The CA-3116-200W Class-D Stereo Audio Amplifier Board is a compact, high-efficiency audio amplifier module designed for DIY audio enthusiasts, speaker builders, and embedded audio applications. Built around the proven TPA3116D2 Class-D amplifier architecture, this amplifier delivers powerful stereo output with low distortion, excellent efficiency, and minimal heat generation.
Supporting a 12V–24V DC input, the board can drive both 4Ω and 8Ω speakers, making it suitable for bookshelf speakers, multimedia systems, portable Bluetooth speakers, desktop amplifiers, and automotive audio projects. Premium toroidal inductors, high-quality filter capacitors, and dual aluminium heat sinks ensure stable performance and clean audio reproduction.
Audio can be supplied via the onboard 3.5mm AUX jack or JST audio input connector, providing flexible integration into custom audio systems. Its compact PCB design and multiple mounting holes make installation simple for DIY and professional projects alike.
Key Features
- High-efficiency Class-D stereo amplifier design.
- Based on TPA3116D2 amplifier architecture.
- Up to 200W Peak Output (100W + 100W).
- Recommended RMS output of approximately 2×50–60W @ 24V.
- Wide 12V–24V DC operating voltage.
- Supports 4Ω and 8Ω speakers.
- Up to 90% amplifier efficiency.
- Dual aluminium heat sinks for improved thermal performance.
- High-quality toroidal output inductors.
- 3.5mm AUX audio input.
- JST audio input connector.
- Screw terminal DC power input.
- Low distortion and low background noise.
- Built-in output filtering for cleaner sound.
- Compact PCB with four mounting holes.
- Ideal for DIY speaker and amplifier projects.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | CA-3116-200W |
| Amplifier Type | Class-D Stereo |
| Amplifier IC | TPA3116D2 (or compatible IC) |
| Channels | 2 Channel (Stereo) |
| Peak Output Power | 2 × 100W |
| Recommended RMS Output | Approx. 2 × 50–60W @ 24V |
| Input Voltage | DC 12V–24V |
| Recommended Power Supply | 24V DC, 5A–8A |
| Speaker Impedance | 4Ω–8Ω |
| Audio Input | 3.5mm AUX + JST Connector |
| Frequency Response | 20Hz–20kHz |
| Amplifier Efficiency | Up to 90% |
| Cooling | Dual Aluminium Heat Sinks |
| Protection | Over-current, Over-temperature, Short Circuit, Under-voltage |
| Mounting | 4 Mounting Holes |
| PCB Color | Blue |
Applications
- DIY Bluetooth Speakers.
- Home Audio Systems.
- Bookshelf Speakers.
- Desktop Audio Amplifiers.
- Multimedia Speaker Systems.
- Portable Speaker Projects.
- Car Audio Systems (12V/24V).
- Active Speaker Designs.
- Embedded Audio Systems.
- Educational Electronics Projects.
- Audio Test Benches.
- Custom Sound Systems.
- DIY Amplifier Builds.
- Studio Monitor Projects.
Precautions
- Use only a regulated 12V–24V DC power supply.
- A 24V, 5A–8A power supply is recommended for maximum output.
- Verify power polarity before connecting the board.
- Never short the speaker output terminals.
- Ensure proper ventilation during high-power operation.
- Use quality speakers rated for the amplifier output.
- Keep the board away from moisture, dust, and conductive particles.
- Connect speakers before powering the amplifier.
- Do not exceed the recommended supply voltage.
- Mount the board securely to avoid vibration damage.
Note: This module may not include the original TPA3116D2 IC chip. Please make your buying decision accordingly.