It is a TDA7379 Dual-Channel Audio Amplifier Finished Board, Operating voltage: AC 12~16V, 12~24V DC, Subwoofer: 38W x 1, Left and right channels: 13W x 2,  Suitable for Computer Speaker Motorcycle Amplifier.

Parameters:

• Type: 2.1-channel
• Operating voltage: AC 12~16V, 12~24V DC
• Working current: 2A or more
• Output Power:
  • Subwoofer: 38W x 1
  • Left and right channels: 13W x 2
• Frequency response:
  
  • Subwoofer: 22~150Hz
  • Left and right channels:  22Hz~22kHz
  • Channel separation: ≥ 40db
  • Signal noise ratio: ≤80db
• Output resistance:
  
  • Subwoofer: 8 ohms
  • Left and right channels: 4 ohms
• PCB Size: 76 x 70mm (W x L)
• Net weight: 145 g
• Tips: This amplifier bass is driven by BTL. The two output wires of subwoofer speaker can not be connected to the ground, that is the two wires are completely independent and can only be connect to speakers.

Package includes:

• 1 x Amplifier Board