Bluetooth Subwoofer Audio Amplifier Board 50W+50W+100W with Treble and Bass Control, Bluetooth and AUX Inputs, BT 5.0 Stereo AMP Board for DIY Speakers, Password Free (ZK-TB21)

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About Bluetooth Subwoofer Audio Amplifier Board

Features: 1. Bluetooth+AUX audio input, 2.1 channel stereo output, just a little sound distortion. 2. You can directly adjust the treble and bass. 3. AMP module has AM interference suppression function, shielding cover power inductor, low noise front stage operational amplifier, you will enjoy a more perfect sound quality experience. 4. Audio amplifier board with over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection. 5. The illustration of each interface is printed on the protective plate, making it easy to install and use even without instructions. Use occasion: This 50W+50W dual-channel bluetooth audio amplifier board is widely use indoor and outdoor, such as family, party, bar, band, concert,Carnival etc. Specifications: Product name：2.1 Channel bluetooth audio subwoofer amplifier module with treble and bass control Product model：ZK-TB21 Version: Bluetooth 5.0 (10 meters if unobstructed) Input Sensitivity: 500mV Signal to noise ratio:>90dB Audio Input: Bluetooth+AUX Channel: 2.1 Chip: TPA3116D2 (AM interference suppression function) Adapted speaker: 20-100W,4-8Ω Power Range: DC12-24V/ above 5A (High power recommended high voltage) Output Power: 50W*2 @R&L channel Max100W@Subwoofer Product size: 4.72in*3.94in*0.7in Package Weight: 5.43oz Notice: Adequate output power is required when the audio input is sufficient and the power supply voltage/current is sufficient, the relative power will be higher. Different impedance horns will have different output power.In the case of sufficient voltage and current, the larger the impedance horn, the smaller the relative sound power. Package Including: 1 x Audio amplifier module with 3 buttons 1 x Screwdriver 2 x Shell 5 x Button 4 x Gold Nut 4 x Gold Screw 8 x Black Screw