<ul><li>1. Power supply: dual DC power supply 58- 70V</li><li>2. The rated output power: 500W (70V power supply, 4 ohm load, distortion 1%)</li><li>Efficiency: >= 90%</li><li>3. SNR: 90dB</li><li>5. The total harmonic distortion: 380W ( 70 power 4 ohm speaker, distortion<0.1%), 280W ( 70 power 8 ohm speaker, distortion<0.1%)</li></ul><br><br>

Dual DC Power Supply Mono Digital Class D HiFi Power Amp Amplifier Board Module with Cooling Fan& Over-Temperature Protection for IRS2092S