The products includes pre-amplifier so you can directly connect the sound source and play it !
This Amplifier have simple over-current protection.
Rated Power : 60W
Frequency Response : 80Hz-18KHz±2dB
Sensitivity : AUX: -10dBMIC:-52dB
Signal Noise Ratio : ≥80dB
Monitor Output : 4 dB
AC Input : AC 220-240V 50-60Hz
Output Mode / Main : 4-16Ω /70V/100V
Output Mode / 5 zones : 100V