Description:

This ZK-TB21 TPA3116D2 Subwoofer Amplifier 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.50W+50W+100W Bluetooth 5.0 wireless connection, Bluetooth+AUX audio input, 2.1 channel stereo output, just a little sound distortion.
This 2.1 Channel TPA3116D2 Subwoofer Board is designed with over-voltage protection, under-voltage protection, over-heat protection, and short-circuit protection, with a case to protect it. The illustration of each interface is printed on the protective plate, making it easy to install and use even without instructions.

Specifications:

• 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,4-8
  
• Power Range: DC12-24V/ above 5A (High power recommended high voltage)
  
• 50W*2 @R&L channel
  
• Max100W@Subwoofer
  

Features:

• Bluetooth+AUX audio input, 2.1 channel stereo output, just a little sound distortion.
  
• You can directly adjust the treble and bass.
  
• 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.
• Audio amplifier board with over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection.
• 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,
  

Package Included:

1 x ZK-TB21 TPA3116D2 Subwoofer Amplifier Board Bluetooth 5.0 Amplifier Board 50WX2+100W 2.1 Channel Power Audio 2.1 Channel Stereo Bass AMP With Bluetooth 5.0 Connectivity Powerful Subwoofer Amplifier Board For Home Audio Systems