Bảng mạch khuếch đại âm thanh kỹ thuật số XH-A310 TDA3116D2 4 kênh 2x50W+2x100W tại Lotte Market

Giới thiệu Bảng mạch khuếch đại âm thanh kỹ thuật số XH-A310 TDA3116D2 4 kênh 2x50W+2x100W tại Lotte Market

4CH 2*50W full tone+2*100W bass Bluetooth power amplifier board

3 chip---TDA3116D2*3
U disk playback---support USB2.0
Bluetooth playback---5.0 high-speed transmission
AUX input---3.5 audio interface

Name: Bluetooth audio amplifier board
Function type: Amplify audio
Chip type: TPA3116D2*3
Bluetooth version: 5.0
Number of channels: 4
Output power: 2*50W full tone + 2*100W bass
Magnification: 30 times
Size: 167*120*38mm
Weight: 353g

FAQ
1. About the length of Bluetooth connection.
Answer: After testing, the connection distance of different mobile phones is different. The Bluetooth connection distance of OPPOR9m we tested is only 2-3 meters; while the Bluetooth connection distance of Honor and Apple phones can reach more than 20 meters.

2. When the volume is turned up, the sound will be stuck, intermittently, and it can be played normally after the volume is turned down.
Answer: One of the reasons: Due to the low power of the power supply, the total output power of this Bluetooth power amplifier board is 300w. When selecting the power supply, it is recommended that the voltage be above 21V and the current should be above 15A.
Reason two: If the power supply is ok, it may be that the power of the speaker is too low. For example, if the output is 100W, but a 50W speaker is connected, the volume is turned on, there will be a freeze phenomenon, and the speaker may be burned out.

3. There is too much noise when playing music, or there is a bottom noise when no music is played.
Answer: The function of the power amplifier board is to amplify the signal. The main source of noise is that the radio clutter in the environment is amplified by the power amplifier board, so as long as it is the power amplifier board, there will be noise. Therefore, try to use the audio cable with shielding function. It is also possible that the sound source is noisy. Normal mobile phones and MP3 will not have it. Most of them are on some old front-end boards, which are not compatible with our company's power amplifier boards. You can add audio isolators or whether the coupling capacitors can be removed.

4. The problem of power supply, is it better to share one power supply or separate power supply?
Answer: It is good to share one power supply normally, if the same power supply is noisy, you need to supply power separately

5. The problem of Bluetooth connection failure.
Answer: The Bluetooth indicator light flashes regularly when it is working normally. If it stays on or does not light up, there may be a problem with the Bluetooth module. Contact the customer in time.

6. The mobile phone can be connected but the laptop or desktop computer cannot be connected.
Answer: If the phone can connect and play music, it means that there is no problem with the Bluetooth power amplifier board. There may be a problem with the computer's Bluetooth driver, the version is too old or there are files missing. It is recommended to uninstall and then install the latest version of the driver.