Features:
1.Output short circuit .
2.Output DC bias speaker .
3.Over temperature : the output will turned off when the temperature of the heat sink FET is higher than 100 °C.
4.This is a pure power amplifier board, whose sensitivity of the input of 1.5V rms, if your input voltage can't reach this value, recommend add preamp.
5.Mono channel,for 2.0 channel need bid two.

Specifications:
Power supply: dual DC power supply ± 58-± 70V
The rated output power: 500W (± 65V power supply, 4 ohm load, distortion 10%)
Efficiency:> = 90%
SNR: 90dB
The total harmonic distortion:
380W (± 65 power 4 ohm speaker, distortion
280W (± 65 power 8 ohm speaker, distortion
Frequency range: 20Hz-20KHz
Speaker: 4-8ohm
Voltage Magnification: 36 times
Input sensitivity 1.5V (RMS)
Output short circuit : Yes
That output DC bias speaker : Yes
Over-temperature : Yes, radiator FET temperature higher than 100 ° C, turn off the output!

Use precautions:
1. Rated supply voltage is ±65V, ±58---±70V range, do not over 70V! positive and negative do not pick wrong
2. Recommended power supply ±65V
3. Recommended 4-8? / 10-18inch speaker
4. Carefully check before electricity, ensure the wiring is correct.

Package list:
1 x Digital Amplifier