1. Basic parameter: The rated power supply voltage of the power amplifier board is ±70V, the voltage is between ±55~±80V), excluding overvoltage burnout).
2. 【Power Supply】 We recommend a good power supply of the filter with ±70V DC dual power supply. We recommend using 4 ohm ~ 8 ohm speakers from 10 to 18 inches.
3. Short circuit protection: the sound output has short circuit protection, please do not short-circuit Please do not attempt to connect the positive and negative poles of the power source to avoid burning the board.
4.50X Magnification: The voltage magnification of this board is fixed to 50X If the output power is not enough, the amplification is added according to the specific situation.
5. Note: Before turning on the power, please check carefully before turning on to make sure the wiring is correct;
Spec:
Item Type: Power Amplifier Board
Material: PCB
Size: Approx. 27 x 43 x 96mm / 1.1 x 1.7 x 3.8in
Supply Voltage: Dual DC Power Supply ±55~±80V
Rated output power: 500 W) ± 70 V power supply, 4 ohm load, 1% distortion
>Efficiency: >=90%
Signal-to-Noise Ratio: 90dB
Total Harmonic Distortion:
380W (±70 Power 4 Ohm Speaker, Distortion 280W (±70 Power 8 Ohm Speaker, Distortion Frequency Response) Range: 20Hz-20KHz