Product Description

According to the power formula P=U*U/R=voltage*voltage/load, power is determined by voltage and load. 

The higher the voltage and the smaller the load, the greater the power. The voltage range of the board means that the board 

can work normally within this range. Not all voltages and load powers have the same high power output as marked. For example, 

12V power supply 4 ohm load, the maximum power is 15W, 8 ohm maximum power is 7.5W; 

24V power supply 4 ohm, the maximum power is 50W, 8 ohm maximum power is 25W; at any time, the power of the power supply 

must be greater than the power of the amplifier, otherwise the loud volume cannot be brought up, 

the power will be reduced and the sound will be cut off, and the corresponding power output will not be achieved.

1. Power supply voltage: dual DC power supply ±58---±70V

2. Rated output power: 500W (±65V power supply 4 ohm load, distortion 10%)

3. Efficiency: >=90%

4. Signal-to-noise ratio: 90dB

5. Total harmonic distortion: 380W (±65 power supply 4 ohm speaker, distortion <0.1%)

280W (±65 power supply 8 ohm speaker, distortion <0.1%)

6. Frequency response range: 20Hz-20KHz

7. Speaker: 4-8Ω

8. Voltage amplification: 36 times

9. Input sensitivity 1.5V (RMS)

10. Output short circuit protection: Yes

11. Output DC bias protection, i.e. speaker protection: Yes

12. Over-temperature protection: Yes, if the heat sink field effect tube temperature is higher than 100°C, 

the output will be turned off!

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