Description: Description This is pure power amplifier board the sensitivity of the input signal of 1 5Vrms if your input signal voltage cant reach this value recommend add preamp Mono channel for 2 0 channel need bid two The rated output power 500W DC 65V power supply 4 ohm load distortion 10 Efficiency 90 SNR 90dB color blue The total harmonic distortion 380W 65 power 4 ohm speaker distortion Less than 0 1 280W 65 power 8 ohm speaker distortion Less than 0 1 Frequency range 20Hz 20KHz Speaker 4 8ohm Voltage Magnification 36 times Input sensitivity 1 5V RMS 0 Output short circuit protection Yes That output DC bias protection speaker protection Yes Over temperature protection Yes radiator FET temperature higher than 100 Celsius turn off the output Amplifier board size length x width x height 98x43x30mm Weight 95 g Use precautions Rated supply voltage is DC 65V 58V 70V range do not over 70V positive and negative do not pick wrong Recommended power supply DC 65V Recommended 4 8ohm 10 18inch speaker Carefully check before electricity ensure the wiring is correct Material CCLNote Light shooting and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is 1 3cm Package included 1 x IRS2092S 500W Mono Channel Digital Amplifier