SMAKN&reg; DA7498E160W+160W Class D High Power Amplifier Board DC15V to DC36V Rated output power: 2 * 160W36V 4In parallel mode:320W * 1, 2 Operating voltage: DC15V to DC36VCurrent: it is recommended that more than 4 A PCB board size: 92mm * 90mm * 38mm Board type hole spacing: 2.0 mm Output hole spacing: 7.62 mm