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XH-A373K Car Bluetooth 5.0 Amplifier Board High-End Audio Amplifier Board High Power TDA7850H 4*50W
Features:
- Car audio amplifier board
- High power, Bluetooth 5.0
- TDA7850H chip
- 4*50W output
- Fan for heat dissipation
- Acrylic shell
Specifications:
- Product name: Audio amplifier board
- Product model: XH-A373K
- Function type: Amplify audio
- Chip type: AB (A and B)
- Chip model: TDA7850H
- Bluetooth version: 5.0
- Power supply voltage: DC 12-14.4V
- Standby current: 150mA
- Number of channels: stereo*2+bass*2
- Output power: 50W*2 + 50W*2 (4Ω)
- Signal to noise ratio: 88%
- Appearance size: 105*90*37mm
- Product weight: 203g
Package Included:
- 1 x Amplifier Board
Note:
- Other items pictured are not included, for demonstration purposes only. Thank you for your understanding!
Bluetooth Connection:
1. Open cellphone's Bluetooth and search for Bluetooth device Hazy Audio.
2. Connect to Hazy Audio.
3. Play and enjoy music.
Attention:
After power on, there will be a beep for waiting for Bluetooth connection, and power indicator will flash quickly. When the Bluetooth is connected, the beep will tell you that the Bluetooth connection is successful, and the power indicator will stop flashing. When playing a song, the indicator light will flash at low frequency.
FAQ:
1. Bluetooth cannot be connected.
Answer: Bluetooth indicator light flashes regularly when it is working. If the Bluetooth indicator is always on or off, there may be a problem with the Bluetooth module. Please contact customer service in time.
2. Mobile phone can connect to it, but a laptop or desktop computer cannot connect to it.
Answer: If your 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 computer's Bluetooth driver, the version is too old or some files are missing. It is recommended to uninstall first and then install the latest version of the driver.
3. When it turns up, the sound will freeze, intermittently. After it turns down, it can play normally.
Answer: Reason 1: The power of power supply is too small. The total output power of this power amplifier board is 200W. When choosing a power supply, it is recommended to select 12V and above 18A. Reason 2: If there is no problem with power supply, it may be that the power of the speaker is too small. For example, when the output is 20W, but a 5W speaker is connected, it will freeze when it turns up, and the speaker may be burned out.
