Parameter:
Product 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
Appearance size: 167*120*38mm
Product weight: 353g
★Common Problem★
1. About the length of the Bluetooth connection distance.
Answer: After testing, the connection distance of different mobile phones is different. The Bluetooth connection distance of OPPO R9m we tested is only 2-3 meters; while the Bluetooth connection distance of Honor and Apple mobile phones can reach more than 20 meters.
2. When the volume is turned up, the sound appears to be stuck and intermittent. After the volume is turned down, it can be played normally.
Answer: One of the reasons: because the power supply is too small, the total output power of this Bluetooth power amplifier board is 300W. It is recommended that the voltage should be above 21V and the current should be above 15A when selecting the power supply.
The second reason: If there is no problem with the power supply, 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, and the volume is turned up, 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 background noise even when no music is played.
Answer: The function of the power amplifier board is to amplify the signal. The main source of noise is the radio clutter in the environment that 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. Another possibility is that the audio source has noise, which normal mobile phones and MP3 do not have. Most of them are on some old front-end boards. They are not compatible with our company's power amplifier boards. You can add audio isolators or coupling capacitors. Can you remove it? .
4. As for the power supply, is it better to share one power supply or separate power supply?
Answer: It is good to share a power supply normally. If there is noise when sharing a power supply, it needs to be powered separately.
5. The problem that the bluetooth cannot be connected.
Answer: The bluetooth indicator flashes regularly when it is working normally. If it is on or off, there may be a problem with the bluetooth module, and you should contact the customer in time.
6. The mobile phone can be connected but the laptop or desktop cannot be connected.
Answer: If the mobile phone can connect and play music, it means that there is no problem with the Bluetooth power amplifier board. It may be that there is a problem with the Bluetooth driver of the computer, the version is too old or the files are missing. It is recommended to uninstall it first and then reinstall the latest version of the driver.
Package：
1pc TDA3116D2 Digital Power Amplifier Board Four-Channel Double Bass Double Stereo
Product 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
Appearance size: 167*120*38mm
Product weight: 353g
★Common Problem★
1. About the length of the Bluetooth connection distance.
Answer: After testing, the connection distance of different mobile phones is different. The Bluetooth connection distance of OPPO R9m we tested is only 2-3 meters; while the Bluetooth connection distance of Honor and Apple mobile phones can reach more than 20 meters.
2. When the volume is turned up, the sound appears to be stuck and intermittent. After the volume is turned down, it can be played normally.
Answer: One of the reasons: because the power supply is too small, the total output power of this Bluetooth power amplifier board is 300W. It is recommended that the voltage should be above 21V and the current should be above 15A when selecting the power supply.
The second reason: If there is no problem with the power supply, 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, and the volume is turned up, 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 background noise even when no music is played.
Answer: The function of the power amplifier board is to amplify the signal. The main source of noise is the radio clutter in the environment that 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. Another possibility is that the audio source has noise, which normal mobile phones and MP3 do not have. Most of them are on some old front-end boards. They are not compatible with our company's power amplifier boards. You can add audio isolators or coupling capacitors. Can you remove it? .
4. As for the power supply, is it better to share one power supply or separate power supply?
Answer: It is good to share a power supply normally. If there is noise when sharing a power supply, it needs to be powered separately.
5. The problem that the bluetooth cannot be connected.
Answer: The bluetooth indicator flashes regularly when it is working normally. If it is on or off, there may be a problem with the bluetooth module, and you should contact the customer in time.
6. The mobile phone can be connected but the laptop or desktop cannot be connected.
Answer: If the mobile phone can connect and play music, it means that there is no problem with the Bluetooth power amplifier board. It may be that there is a problem with the Bluetooth driver of the computer, the version is too old or the files are missing. It is recommended to uninstall it first and then reinstall the latest version of the driver.
Package：
1pc TDA3116D2 Digital Power Amplifier Board Four-Channel Double Bass Double Stereo
