Technical Specifications 8Ω stereo(per channel) (1kHz(EIA)with 0.5%THD): 2*1300W 4Ω stereo(per channel) (1kHz(EIA)with 0.5%THD): 2*2100W 8Ωbridge mono (1kHz(EIA)with 0.5%THD): 4350W Voltage Gain: 38dB Total Harmonic Distortion(THD): < 0.5%,20Hz-20kHz Intermodulation Distortion(IMD): ≦0.35% Slew Rate: >10V/us Frequency Response (at 1 Watt): 20Hz-20kHz,+0/-1dB Damping Factor (8 Ω), 10Hz-400Hz: >200 Signal-to-Noise Ratio (below rated power,20Hz -20kHz, A-weighted ): >100dB Crosstalk (below rated power) At 1 kHz At 20 kHz: -75dB -59dB Input Sensitivity for full rated power at 8Ω: 0.775V or 1.4V Input Impedance (nominal) Balanced / Unbalanced: 20kΩ / 10kΩ Input Connectors: Once balanced XLR per channel Output Connectors(Speaker Connectors): 4-POLE Speakon per channel Front Panel Controls: Power on/off switch, one gain control per channel Rear Panel Controls: Power on/off switch ,one gain control per channel Input sensitivity switch:0.775V or 1.4V Power Indicator Signal Indicator: One red LED of work, One green LED per channel Clip(peak) Indicator Fault Indicator: One yellow LED per channel, One red LED per channel Protection: Protection against short circuits, no-load, on/off muting, Rf interference. Stable into reactive or mismatched loads Ventilation: Flow-through ventilation form front to back Cooling: speed regulated ,thermal protection