Embark on building your ideal speakers with this amazing Bluetooth power amplifier board! It's a cost - effective gem with a high - power 100W output. It comes with a volume control button, Bluetooth 5.0 input, and dual - track output. This board can work with DC 5 - 24V and is compatible with 4 - 8Ω, 50W - 300W passive speakers. Connect it to Raspberry Pi, mobile phones, and other Bluetooth - enabled main - controllers for your DIY projects. Four high - quality 470uf capacitors ensure a stable output. It also has a heat sink and an excellent power module, allowing it to operate steadily during long - term high - output use. The board is equipped with bottom/top protective panels and features auto overheat and short - circuit protection. Operating this board is a breeze. Connect it to a speaker, power it on. Rotate the knob and the indicator LED will light up. Turn on the Bluetooth of your phone or Raspberry Pi, search for “BT - WUZHI” and click to connect. You'll hear a prompt tone upon successful connection, and then you can start playing music. The Bluetooth will automatically reconnect when the module is powered on next time. Note that the board will output sufficient power only when the audio input and power source voltage/current are adequate. Higher power supply voltage means larger output power. Also, speaker impedance affects the amplifier board's power output. With enough voltage and current, a larger speaker impedance in ohms results in a smaller output power. Specification: Supply Voltage: 5 - 24V; Output Power: 100W*2; Compatible Speakers: 50W - 300W, 4Ω - 8Ω; Sound Channel: left/right channel (stereo audio); Bluetooth Version: 5.0; Bluetooth Transmission Distance: 15m (without any obstacle); Protection: auto overheat protection, auto short - circuit protection. Shipping List: One High - Power Bluetooth Power Amplifier Board, two Acrylic Protective Cases, one Screwdriver, one 20cm Power Wire, one Knob, and one Accessories Package.
Using this high - performance Bluetooth power amplifier board is easy. First, connect the board to a speaker and power it on. Then rotate the knob, and you'll see the indicator LED light up. Next, turn on the Bluetooth of your phone or Raspberry Pi. Search for “BT - WUZHI” and click to connect. Once connected (you'll hear a prompt tone), you can play music. The next time you power on the module, the Bluetooth will reconnect automatically. Here are some important notes. Make sure the audio input and power source voltage/current are sufficient for the board to output enough power. The higher the power supply voltage, the more power the board will output. Also, speaker impedance matters. If you have enough voltage and current, a larger speaker impedance means less output power. For maintenance, keep the board clean and avoid exposing it to extreme temperatures or humidity. If you notice any signs of overheating or short - circuiting, turn off the power immediately. The board has auto overheat and short - circuit protection, but it's still a good idea to take proper care of it.
