<ul><li>Working Voltage: AC Double 18-24V (Recommended Double 24V)</li><li>Size: 14.3x13.2x5.9CM</li><li>Maximum Output Power: Left And Right Channel 100Wx2 Subwoofer 120Wx1</li><li>Output Impedance: 4-16</li></ul> Parameter: Working Voltage: AC Double 18-24V (Recommended Double 24V) Maximum Output Power: Left And Right Channel 100Wx2 Subwoofer 120Wx1 Output Impedance: 4-16 Size: 14.3x13.2x5.9CM The potentiometers are from left to right: treble adjustment, subwoofer volume, and total volume. Product Description: A total of six power amplifier tubes are used in the circuit, four of which are responsible for the left and right channels, and the other two are connected to the BTL circuit for use by the subwoofer. Board material: five ring 1% metal film resistor, large filter capacitor, the whole circuit board design is reasonable, beautiful, low noise, high cost performance, very suitable for DIY entry. Package: 1* Subwoofer Power Amplifier Board 1*3.96 Plug Wire 4* Knob 4*Screw 1*Cooling Fan

300W 3 Channel Air Cooled Subwoofer Power Amplifier Board 2.1 High Power Amplifier Board

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