DROK Class AB Amplifier, 2. 1 Channel 80W80W Stereo and120W Pure Bass 9-18V 4ÃŽ© Audio Amplifier Board.

Parameter: Working Voltage: DC 9 18V Output Power: Max 2x80W stereo(18V/4Ω, 1x120W pure bass(18V/2ΩConnecting: 2/4/6/8Ω speaker Input Method: 3. 5mm audio input or 3P2. 54mm terminal input Protection: input anti reverseconnect protection, output short circuit protection, over current protection (OCP, over temperature protection (OTP. PCB Size: 72. 36mm*66. 65mm(length*wideOverall Size(radiator included: 72. 36mm*96mm*27mm Potentiometer Rotating Handle Opening: 7mm Installing Hole Spacing: 25. 4mm*48. 26mm(compatible for bluetooth module spacingInstalling Hole Size: M3.