1: 1: IRFP4227 and IRS2092S designed, rated effective power: 1 thousand W, can be 2-8 ohm speakers, onboard intelligent temperature control fan, can heat and energy saving, can reduce noise, all imported components plus SMT process, work Excellent, small distortion, stable and reliable performance .
2: board power supply for the dual power supply, audio input for the 3 feet, the middle of the ground, both sides of the feet are connected together, any kick If not switching power supply, with a ring of cattle power supply to add their own flow filter circuit If your switching power supply is not a dual output, but a single output, you need two single power supply in series.
3: Finished board monaural, need two-channel please buy two pieces , Supply voltage is double DC power supply ± 58 --- ± 70V .
4: The main technical parameters:
1. Supply voltage: dual DC power supply ± 58 --- ± 75V
2. Rated output power: 1000W (± 70V power supply 2 ohm load, distortion 10%)
3. Efficiency:> = 90%
4. Signal to noise ratio: 90dB
5. Total harmonic distortion: 900W (± 70 power supply 2 speakers, distortion <1%)
750W (± 70 power supply 2 ohm speakers, distortion <0.1%)
6. Frequency response range: 20Hz-20KHz
7. Speaker: 2-8Ω
8. Voltage magnification: 36 times
9. Input Sensitivity 1.5V (RMS)
10. Output short circuit protection: Yes
11. Output DC bias protection that is the speaker protection: Yes
12. Over temperature protection: Yes, the radiator FET temperature is higher than 100 ° C, turn off the output
13. Amplifier board size: length x width x height = 132x68x45mm
14. Weight: 260G .
5 : Precautions for use:
1. Rated supply voltage for the dual power supply ± 65V, the voltage in the ± 58 --- ± 75V can work (if the frequency transformer, the voltage fluctuation please leave margin, the power supply for the three power lines, power positive and negative Do not get rid of the wrong board
2. Power supply is recommended for DC dual power supply ± 65V filter better power supply
3. Speaker recommended 10-25 inch 2 oh 8 oh speakers
4. Although the audio output short circuit protection, but try not to short circuit
5. Please check carefully before powering on, make sure that the wiring is correct before powering on.
7. This board voltage magnification is fixed to 40 times, if the output power is not enough, depending on the specific circumstances of their own pre-level amplification.