Special reminder:      

             1. This board is a full-band pure post power amplifier, to be used as a subwoofer needs to add a pre-stage low-pass filter;      

             2. The board is powered by dual DC voltage, the car battery is a single power supply can not be used!      

             Designed by IRRP4227 and IRS2092S of American IR, the rated effective power is 1000W. It can push all the power horns of 2-8 Euro on the market, on-board intelligent temperature control fan, which can not only save heat but also reduce noise. All imported components plus SMT process, excellent workmanship, low distortion, stable and reliable performance      

             parameters:      

             1. Supply voltage: dual DC power supply ± 58 --- 85V      

             2. Maximum rated output power: 1000W (±85V power supply 4 Euro load, distortion 1%)      

             3. Efficiency: >=90%      

             4. Signal to noise ratio: 90dB      

             5. Total harmonic distortion: 1000W (±85 powered 4 Euro speaker, distortion <1%)      

                                                           500W (±85 powered 8 ohm speaker, distortion <1%)      

             6. Frequency response range: 20Hz-22KHz      

             7.Speaker: 2-8Ω, pay special attention if the power supply with 2Ω low impedance speaker is less than ±65V      

             8. Voltage magnification: 36 times      

             9. Input sensitivity 1.5V (RMS)      

             10. Output short circuit protection: Yes      

             11. Output DC bias protection that is horn protection: Yes      

             12. Over temperature protection: Yes, radiator FET temperature is higher than 100°C, turn off output!      

             13. Power amplifier board size: length x width x height = 132x68x45mm      

             14. Weight: 260 grams      

             attention:      

             1. The rated power supply voltage is ±75V for dual power supply, and the voltage can work normally within ±58---±85V (If it is a power frequency transformer, the voltage fluctuates, please leave a margin, the power supply is 3 power supply lines, and the power supply is positive and negative Do not take wrong so as not to burn the board      

             2. The recommended power supply for DC dual power ±75V filtered power supply      

             3 speakers recommended with 10-25 inch 2 euro-8 euro speaker      

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

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

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

             Package Included:       

             1 x IRS2092S Digital Amplifier Board High Power 1000W Mono Class D HiFi Subwoofer