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Wiring: VCC → 3.7~24VDC power supply, GND → ground (common terminal), L OUT → amplifier left channel input, R OUT → amplifier right channel input, GND (audio) → amplifier GND.
Short-circuiting the "Power On/Off Contact" for 2 seconds sets the decoder board to power on/off, simple to use and easy to modify.
Jack: 3.5 mm, Dimensions: 44x30x10mm, Transmission Distance: 15 meters (line of sight, unobstructed), Module Protection Mechanism: Reverse connection protection.
Protection Mechanism: Our Bluetooth amplifier board have power reverse connection protection, short circuit protection, self-restoring overheating protection, safer and more reliable.
Premium and Stable: Our Bluetooth power amplifier board is a wireless digital audio amplifier that supports stereo 2-channel outputs, highly restored sound source for clear sound quality.
High Power: Our Bluetooth amplifier board can provide a maximum power output of 20 W x 2, if you use more than 20 W x 2, it is recommended to add a heat sink on the back of this board.
Treble and Bass Adjustment: This digital Amp board with independent treble and bass adjustment buttons,you can directly adjust the treble and bass through the module, without using the player or speaker;
Subwoofer Audio Amplifier Board: 50W+50W+100W Bluetooth 5.0 wireless connection, Bluetooth+AUX audio input, 2.1 channel stereo output, just a little sound distortion. Note: When using AUX mode, please confirm that the Bluetooth connection of this module has been disconnected;
Perfect Sound Quality Experience: The audio power subwoofer amplifier module with powerful chip, AM interference suppression function, shielding power inductance, low noise front stage operational amplifier, let you enjoy a more perfect sound quality experience;
Widely used in a variety of Bluetooth audio reception, a variety of audio DIY modification.
This product is an energy-saving Bluetooth design solution, supports the latest Bluetooth 4.2 transmission and lossless 2-channel playback. The module can be connected via Bluetooth to quickly realize wireless Bluetooth transmission, which is very convenient.
In an open environment, the Bluetooth connection distance can reach 20 metres.
Performance: The circuit board supports Bluetooth 4.1, automatic reconnection function, WAV+APE+FLAC+lossless MP3 decoding, and stereo channel output.
Packaging: 4 Bluetooth 4.1 circuit boards, model: XY-BT-MINI, size: 30x30mm, equipped with 3.5mm stereo interface, three solder pads, and Micro USB interface. You can input stereo sound sources, connect headphones, and connect power amplifiers.
Application: The circuit board plays audio signals through Bluetooth connection. The audio module is suitable for retrofitting existing systems or speakers with Bluetooth. Suitable for building your own portable Bluetooth speaker.
This product has its own dual 5W power amplifier circuit, and must not be connected to another amplifier! The outputs of the two amplifiers may not be connected in parallel or the negative poles may be connected together, otherwise the power amplifier chip may be damaged.
Support USB sound card, free drive (plug and play). Connect the module to the computer with a USB cable, and the computer can play music through the module amplifier output. Audio output: output left and right stereo audio signals, which can be connected to two 2-8 ohm, 3-5W speakers, and 4 Euro 5W speakers.
Power supply: You can directly use the MICRO USB Android cable 5V for direct power supply, or you can also connect 5V power supply or 3.7V lithium battery (as shown below). Note that the 5V and 3.7V power supply interfaces are different. The 5V voltage is connected to 5V and GND, and the 3.7V lithium battery is connected to VBAT and GND. The maximum operating current is 5V2A. It is recommended to use a regulated 5V2A power supply for better sound quality.
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