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Power Amplifier. We specialize in the manufacturing and exporting of high quality ,Stadium amplifier,pro amplifier,Amplifiers ,Audio amplifier.Professional Power Amplifiers Sourcing the on-playing music as signal then calculating the instant resistance of load based on real-time analysis of the output voltage and current.When the resistance is less than 1.6ohm,soft protection launches to limit the driving current and recovers current in 5 ms after the failure removed.The relay is kept in connected through protection just avoid contact destruction. Independent detection on the signal above 3KHz in the output.Once it exceeds 40V in 0.5s the protection program launches to lower the output below 40V to levitate the damage to HFdrivers.IN THE SOLUTION TO LINEAR AMPLIFIER BASED ON LINEAR POWER SUPPLY,THE FOLLOWING INIOVATIVE TECHNOLOGIES PUT THE POWER-TO-WEIGHT RATIO AND POWER-TO-VOLUME RATIO TO A NEW, UNEXP ;ARED LIMIT:1. Less heat loss due to accurate power allocation2. Unique power supplying program lower the requirements of power supply3. Select material and appropriate production technology maximizing the turnout of adapter4. Ideal radiator structure improving heat sinking so that a smaller and lighter radiator can dissipate heat far faster and more efficientlySpecification:THD+NRate power,1KHz<0.025%Smpte IMDRate power,60Hz/7kHz4/1<0.075%Frequency responseRate power,20Hz-20kHz< +/- 0.25dBPhase responseRate power,20Hz-20kHz< +/- 8 Degree Signal to noise ratio1KHz,0.775V input, A weight, >110dBDamping factorRate power,63Hz>1500Controlled slew rate1KHz Tone burst,40dB Gain >100V/usInput impedanceRate power,1KHz,Balanced input20kohmLowest loaded impedanceStereo>1.6 ohmBridge>3.2 ohmDimensions88mm X 482mm X 400mm