Description
CAAV-AP09 Bluetooth 5.1 Audio Amplifier Board – Powerful 2.1 Channel Stereo & Subwoofer Amplifier
The CAAV-AP09 2.1 Channel Bluetooth Audio Amplifier Board is a high-performance digital amplifier module designed for powerful and clear audio output. Powered by the TPA3116 amplifier IC, this board delivers up to 2x50W stereo output plus 100W subwoofer output, making it ideal for DIY speaker systems, home audio setups, and multimedia applications.
Featuring Bluetooth 5.1, AUX input, and USB playback support, the amplifier offers flexible connectivity for smartphones, PCs, TVs, and music players. The board supports a wide voltage range from DC 12V to 24V, ensuring compatibility with various power sources.
Built-in protection mechanisms including reverse polarity protection, overheating protection, overcurrent protection, and short-circuit protection ensure safe and stable operation.
Perfect for DIY enthusiasts, audio projects, and custom speaker systems, the CAAV-AP09 provides impressive sound quality with efficient Class-D amplification technology.
Key Features
- 2.1 Channel Audio Output – Stereo + dedicated subwoofer channel.
- High Power Output – Up to 2×50W + 100W.
- Bluetooth 5.1 Connectivity – Stable wireless audio streaming.
- TPA3116 Amplifier IC – Efficient and high-quality sound performance.
- Multiple Input Options – Bluetooth, USB, and AUX input support.
- Wide Operating Voltage – Compatible with DC 12V–24V supplies.
- Built-in Protection Circuitry – Reverse polarity, overheat, short-circuit, and overcurrent protection.
- Expansion Ports Available – Supports microphone and subwoofer signal expansion.
- Compact Design – Ideal for custom audio projects.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | CAAV-AP09 |
| Amplifier Chip | TPA3116 |
| Bluetooth Version | 5.1 |
| Bluetooth Name | BT-APP |
| Audio Channels | 2.1 Channel |
| Input Methods | Bluetooth + USB + AUX |
| Power Supply | DC 12V–24V / 5A or above |
| Speaker Compatibility | 20W–100W / 4Ω–8Ω |
| Stereo Output | ≤ 50W × 2 |
| Subwoofer Output | ≤ 100W |
| Protection Features | Reverse polarity, overheating, overcurrent, short circuit |
Power Output Table
| Input Voltage | Speaker Impedance | Stereo Output | Subwoofer Output |
|---|---|---|---|
| 12V | 8Ω | 15W | 20W |
| 12V | 4Ω | 30W | 35W |
| 19V | 8Ω | 20W | 35W |
| 19V | 4Ω | 40W | 60W |
| 24V | 8Ω | 30W | 50W |
| 24V | 4Ω | 50W | 100W |
Applications
- DIY Bluetooth Speaker Systems
- Home Theatre Audio Systems
- Subwoofer Amplifier Projects
- Car Audio Systems
- Multimedia Speaker Systems
- Portable Audio Projects
- Custom Sound Systems
Precautions
- Use a DC 12V–24V regulated power supply.
- Ensure correct speaker impedance before connection.
- Avoid short-circuiting speaker outputs.
- Provide proper ventilation for heat dissipation.
- Do not exceed recommended voltage limits.
Note: This module may or may not include the original TPA3116D2 IC chip. We sell it as we received it from the vendors, make your buying decision accordingly.
You may also like
Recently viewed
good product I am ordered Ap09 but I received Tb 21
this board is new tb 21 with original IC
2 board difference is ap 09 has a low sub output & Mic in output. but Tb 21 have not.
but I start the board on a 12 v 2 amp small charger sounds very good. it's 30 to40 % It's required a 24 volt 5 amp minimum to full potential .
l ordered a SMPS when is delivered to me then i take its full potential
I am attaching 2 pictures Tb21 and Ap 09 .
I think Ap 09 is Stop manufacturing .
How I know it's Tb 21 ?
It's very simple Bluetooth name is Tb 21
This is a original board , very clear and deep bass , I use 12v 1.5amp but sound like a 3-4k sound bar . Build quality aslo topnotch,
Same board on other platforms just dubble the price,
You trust this website, the packaging was very good, not a single scratch on the box , I am very happy with this amplifier,
If you play heavy bass for long time, the heatsink get hot according to your atmosphere, but don't panic, you just install a little fan on it , then you can use it very roughly without any tensions, just go for it .
I have both the **TB21 and this amplifier**, and honestly, I don't notice any significant difference between them in terms of sound quality. The **bass and treble controls work really well** and give you good control over the sound. Another advantage is that you don't need to attach a separate bass/treble tone-control board.
For the power supply, I recommend using a **24V 10A power supply** with this amplifier. I would recommend **at least 6A**, especially if you plan to run the amplifier at higher volumes.
I'm currently using it with **two 50W speakers and one 80W subwoofer**, all rated at **4 ohms**, and the performance has been excellent.
There is also **virtually no audible humming or background noise** from the board in my setup, which is a big plus.
I'm very satisfied with this amplifier and will probably purchase another unit in the future.
**Overall, a very good choice for a DIY 2.1 speaker setup.**
super and good quality motherboard and good sound quality I am happy thanks makerbazar
Good amplifier.
Good 👍👍😊
How total watt
Kotal kitne watt
kahi
value for money
bablu
hvguc
sound quality awesome love you makerbazar
really satisfied with the original ic and heavy bass quality and super loud
sometime bluetooth connection problem , sometime music stop , and play in one second . I rating this product 4 stars , because this module i faced bluetooth problem .
👍🏻👍🏻❤️
Good
Not received the product for more then 2weeks living in 3km in range.
At last I cancel the product.
अभी उसे नहीं किया है उसे करके ही बताऊंगा
Very good. Recommended.
price ke hisab jese one of the best amplifier he
Best amplifier board sound quality is very powerful...100% worthy boards ♥️♥️
super 👍
cghbb fguhv fyh. fiob.
very good audio better then soundbar like govo, boat , zebronics etc.
Very good sound quality
lovely products
क्लास डी एमप्लीफायर काफी शानदार क्वालिटी का है
ultra bass good quality 👌 sound clear voice clear
बीच-बीच mein awaaz rukti hai