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By certification 
Technical Specifications
RMS 8Ω/STEREO: 400W+400W
20Hz-20KHz 4Ω/STEREO: 700W+700W
THD+N 0.1% 8Ω/BRIDGE: 1400W
FREQUENCY RESPONSE ref 1k20Hz-20KHz: ±0.2dB
THD+N: < 0.1%
SNR: 95dB
DAMPING FACTOR: >200
SR: >20V/μs
GAIN RL 8Ω: 37dB
INPUT IMPEDANCE: Balance 20K/ Unbalance 10K
OUUPUT CIRCUITRY: Class AB
AC POWER: AC 220V 50-60Hz (±10%)
AMPLIFIER AND LOAD PROTECTION: Soft boot, DC, short circuit, over load, overheat, Clipping distortion
INPUT CONNECTORS: Female XLR Type/Male XLR Type
OUTPUT CONNECTORS: NL4 Speakon socket, Binding post
CONTROLS AND LEDs- FRONT PANEL: Peak clipping, Signal, A&B Volume potentiometers, DC, Protection indicator
CONTROLS AND LEDs- REAR PANEL: Stereo, Splice, Bridging option switch, Bridging indicator, Sensitivity option switch, Grounding switch, 30Hz HI-PASS switch.
COOLING MODE: Stepless automatic transmission cooling fan.
RMS 8Ω/STEREO: 400W+400W
20Hz-20KHz 4Ω/STEREO: 700W+700W
THD+N 0.1% 8Ω/BRIDGE: 1400W
FREQUENCY RESPONSE ref 1k20Hz-20KHz: ±0.2dB
THD+N: < 0.1%
SNR: 95dB
DAMPING FACTOR: >200
SR: >20V/μs
GAIN RL 8Ω: 37dB
INPUT IMPEDANCE: Balance 20K/ Unbalance 10K
OUUPUT CIRCUITRY: Class AB
AC POWER: AC 220V 50-60Hz (±10%)
AMPLIFIER AND LOAD PROTECTION: Soft boot, DC, short circuit, over load, overheat, Clipping distortion
INPUT CONNECTORS: Female XLR Type/Male XLR Type
OUTPUT CONNECTORS: NL4 Speakon socket, Binding post
CONTROLS AND LEDs- FRONT PANEL: Peak clipping, Signal, A&B Volume potentiometers, DC, Protection indicator
CONTROLS AND LEDs- REAR PANEL: Stereo, Splice, Bridging option switch, Bridging indicator, Sensitivity option switch, Grounding switch, 30Hz HI-PASS switch.
COOLING MODE: Stepless automatic transmission cooling fan.
