Works voltage: +/- DC 28V
Output Power: 80W + 80W RMS at 8ohm load
Voltage gain: +29dB
Input impedance: 18KOhm
THD+N: 0.001%---0.03% (20Hz-20KHz 5W---30W 8ohm )
Frequency response: -3dB 2Hz & 65kHz
PCB size: 94mm*138mm
NOTE: This is a Bare PCB, and all parts need to be matched by yourself.