This is pure power amplifier board, the sensitivity of the input signal of 1.5Vrms,
if your input signal voltage can't 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%)
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
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!
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