This is a bass amplifier board with preamplifier, bass crossover, and bass volume potentiometer control. It is using TPA3116D2 high-performance digital power amplifier chip.Use DC power supply 12-24V,wide operating voltage, power saving design, efficiency up to 90%. Can support up to 100W (Bass) bass channel output.Can use good performance switching power adapter, laptop switching power supply,and so on...

Working voltage range:

• Dc 9 to 25 v (current 2 -3A above, if you want to power Big,advice 19-24v 4A above).
• Frequency response range: input: 20 hz - 20 KHZ, output: 20 hz - 180 hz,
• Audio input sensitivity: 500 mv.
• Speaker impedance: bass speaker impedance: 2-8 ohm.
• knob color: red and yellow.（ knob color random.

• Bass output power:

  • 12V/10w(8ohm)/ >19w(4ohm)/>22 w( 3ohm m) />30w(2ohm)
  • 15V/>15w(8ohm)/>29w(4ohm)/>39w(3ohm)/>50w(2ohm)
  • 19V/>24w(8ohm)/>48w(4ohm)/>60w(3ohm)/>75w(2ohm)
  • 24V/>38w(8ohm)/>75w(4ohm)/>95w(2-3ohm)

Package:

1x Amplifier Board TPA3116 DC 12-24v 100W Subwoofer