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By certification 
Technical Specifications
RNS 8Ω/STEREO：1000W+1000W
20Hz-20KHz 4Ω/STEREO：1500W+1500W
THD+N 0.1% 8Ω/BRIDGE：3000W
Frequency Response 20Hz-20KHz: ±0.5dB
THD+N: < 0.1%
SNR: 95dB
Damping Factor: >200
SR: >20V/μs
Gain RL 8Ω: 41dB
Input Impedance: balance 20K / unbalance 10K
Output Circuitry ：2-tier Class H
AC Power ：AC220V / 50Hz±10%
Amplifier and Load Protection ：Soft boot, DC, short circuit, overload, 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.
RNS 8Ω/STEREO：1000W+1000W
20Hz-20KHz 4Ω/STEREO：1500W+1500W
THD+N 0.1% 8Ω/BRIDGE：3000W
Frequency Response 20Hz-20KHz: ±0.5dB
THD+N: < 0.1%
SNR: 95dB
Damping Factor: >200
SR: >20V/μs
Gain RL 8Ω: 41dB
Input Impedance: balance 20K / unbalance 10K
Output Circuitry ：2-tier Class H
AC Power ：AC220V / 50Hz±10%
Amplifier and Load Protection ：Soft boot, DC, short circuit, overload, 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.
