The products includes pre-amplifier so you can directly connect the sound source and play it!
This Amplifier have simple over-current protection for short circuit in little time.
MAX Power : 70W
Frequency Response : 80Hz-18KHz±2dB
Sensitivity : AUX: -10dBMIC:-52dB
Signal Noise Ratio : ≥80dB
Monitor Output : 4 dB
AC Input : AC220V±10PHz
Output Mode / Main : 4-16Ω /70V/100V
Output Mode / zones : None