Built in reliable protection circuit for shortcut and over load.
3-way microphone input, one of which is priority microphone with mute.
2 line inputs & 1 line output
All microphones, line intensity, high and low sound can be regulated independently
Ring prompt button with volume adjust.

S / N Ratio:> 68dB
Distortion: <0.1%
Frequency Response: 60Hz-16KHz
Power Output mode: 100V, 70V ,4-16 ohm
Power Output: 250 watt
Output Current: 70x@3.5A 100V@2.5A
Dimension: 483x90x320mm
Weight: 16Kgr