Description
CAAV-AP07 100W+100W+200W Bluetooth 5.1 TPA 3221 2.1 Channel Digital Audio Amplifier Board
The CAAV-AP07 2.1 Channel Digital Audio Amplifier Board is a high-performance Class-D amplifier powered by dual original Texas Instruments TPA3221 amplifier chips, delivering crystal-clear stereo sound and powerful bass performance. Designed for DIY audio enthusiasts, home theatre systems, multimedia speakers, subwoofer projects, and custom audio installations, this amplifier supports Bluetooth 5.1, AUX, USB Flash Drive, and USB Sound Card audio inputs.
With an operating voltage of DC 12V–30V, the amplifier is capable of delivering 100W + 100W stereo output with up to 200W subwoofer output, making it ideal for building powerful 2.1 speaker systems. Independent controls for master volume, bass, treble, subwoofer frequency, and subwoofer volume allow precise sound tuning according to your listening preferences.
The board also includes comprehensive protection against reverse polarity, overheating, overcurrent, and short circuits, ensuring reliable long-term operation. Additional expansion ports support microphone preamplifiers and external subwoofer amplifier modules for advanced DIY audio applications.
Key Features
- Dual original TI TPA3221 Class-D amplifier chips.
- Powerful 2.1 channel audio output.
- Bluetooth 5.1 wireless audio streaming.
- Supports Bluetooth, AUX, USB Flash Drive and USB Sound Card input.
- Up to 100W × 2 + 200W Subwoofer output.
- Adjustable Master Volume control.
- Independent Bass and Treble adjustment.
- Adjustable Subwoofer Volume.
- Adjustable Subwoofer Frequency (20–200Hz)..
- Supports 4Ω–8Ω speakers.
- Low-noise high-efficiency Class-D design.
- Built-in reverse polarity protection.
- Over-temperature protection.
- Over-current protection.
- Short-circuit protection.
- Expansion interface for microphone preamplifier.
- Subwoofer low-level signal output.
- Compact design suitable for DIY audio systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | CAAV-AP07 |
| Bluetooth Name | BT-APP |
| Bluetooth Version | 5.1 |
| Amplifier Chip | Original TI TPA3221 × 2 |
| Amplifier Type | Class-D Digital Amplifier |
| Channels | 2.1 Channel |
| Input Methods | Bluetooth, AUX (3.5mm), USB Flash Drive, USB Sound Card |
| Supply Voltage | DC 12V–30V |
| Recommended Voltage | DC 24V–28V |
| Recommended Power Supply | 10A or higher |
| Stereo Output | Up to 100W × 2 |
| Subwoofer Output | Up to 200W |
| Speaker Impedance | 4Ω–8Ω |
| Max Power @30V | 4Ω: 105W + 105W + 105W Subwoofer |
| Max Power @30V | 8Ω: 55W + 55W |
| Frequency Control | 20Hz–200Hz Adjustable |
| Audio Controls | Master Volume, Bass, Treble, Subwoofer Volume, Subwoofer Frequency |
| Expansion Interface | Microphone Preamplifier Support |
| Protection | Reverse Polarity, Overheat, Overcurrent, Short Circuit |
| Dimensions | 116 × 101 × 24 mm |
Applications
- DIY Home Theatre Systems.
- 2.1 Channel Speaker Systems.
- Bluetooth Audio Receivers.
- Multimedia Speaker Projects.
- Powered Subwoofer Systems..
- Desktop Audio Systems.
- Workshop Audio Projects.
- Car Audio Modifications.
- Smart Audio Systems.
- Educational Audio Projects.
- Karaoke Systems.
- Custom Sound Installations.
Precautions
- Use only a regulated DC 12V–30V power supply.
- Recommended supply is 24V–28V, 10A or higher for maximum performance.
- Ensure correct power polarity before switching ON.
- Do not short speaker output terminals.
- Use speakers within the recommended 4Ω–8Ω impedance range.
- Provide adequate ventilation during high-power operation.
- Keep away from moisture and conductive dust.
- Disconnect power before wiring or servicing.
- Ensure proper insulation of all connections.
- Mount the amplifier securely to avoid vibration.