digital amplifier module,100Wx2 digtial amplifier module,power amplifier module,car amplifier,power amplifier amplifier,amplifie Digital amplfiier moduleInventions with revolutionary design. ... Feature:1) Out put power: 2W x 2, 30W x 2, 50W x 2, 100W x 22) Power supply: DC 5V/12V ... heat, no need radiator6) Input: analog signal 7) Output: 2 channel speaker8) Frequency response: 20Hz~20kHz (within 3dB) 9 ...