Description

IRS2092S Power Amplifier Board Module High Power 500W Class D HIFI Digital Finished Mono 20Hz-20KHz Replaces LM3886

According to the power formula P=U*U/R=voltage*voltage/load, the power is determined by the voltage and the load. The higher the voltage and the smaller the load, the greater the power. The supply voltage range of the board refers to the voltage of the board within this range. It can work normally, but not all voltages and load powers are as high power output as marked. For example, 12V power supply with 4 ohm load, the maximum power is 15W, and the maximum power is 7.5W at 8 ohms; 24V power supply is 4 ohms, and the power is 50W maximum, 8 ohms The maximum power is 25W; at any time, the power of the power supply must be greater than the power of the power amplifier, otherwise the high volume will not move, 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 speakers, distortion <0.1%)

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

6. Frequency response range: 20Hz-20KHz

7. Speaker: 4-8Ω

8. Voltage magnification: 36 times

9. Input sensitivity 1.5V (RMS)

10. Output short circuit protection: yes

11. Output DC bias protection, that is, speaker protection: yes

12. Over temperature protection: Yes, the temperature of the radiator field effect tube is higher than 100°C, and the output is turned off! Second, use precautions:

1. The rated power supply voltage is ±65V for dual power supply, and it can work normally when the voltage is ±58---±70V (over 70V, it will be burned, and it will not be included if it is burned out!), if it is a ring cow, it does not have the function of voltage regulation , the voltage will fluctuate with the power grid, please use it with a margin. Do not connect the positive and negative poles of the power supply wrongly to avoid burning the board

2. The power supply is recommended to be a DC dual power supply ±65V power supply with better filtering

3. Speakers are recommended to use 10-18 inch 4 ohm-8 ohm speakers

4. Although the audio output has short-circuit protection, try not to short-circuit

5. Please check carefully before turning on the power to ensure that the wiring is correct before turning on the power.

7. The voltage magnification of this board is fixed at 40 times. If the output power is not enough, the pre-amplification will be added according to the specific situation.