Operating voltage range: DC 12-24V(maximum voltage is no more than 24V); built-in TPA3116 amplifier chip;This is a pre-amplifier, bass frequency processing, with bass volume potentiometer control of the bass amplifier board.
DC 12-24V power supply(Package without power adapter), wide operating voltage, power-saving design, more than 90% power efficiency. Maximum support 100W (Bass) bass channel output,Without Power Switch Control
Audio input sensitivity: 500 mv;Speaker impedance: bass speaker impedance: 2-8 ohm;You can use a good switching power supply adapter, laptop switching power supply
TPA3116 DC 12-24v 100W Subwoofer Amplifier Board Support Bass Output ,Video Audio Accessories Power supply: DC 12-24V Output power: 100W Use 12 to 24 v power supply,DC power supply wide working voltage, power saving type design, efficiency is as high as above 90 percent.The biggest can support 100 w Bass sound channel output 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 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) Packaging included 1pcs* Subwoofer Amplifier Board