Feature

●50X Magnification: The voltage magnification of this board is fixed to 50X If the output power is not enough, the preamp is added, depending on the specific situation
●Power Supply: Power supply is ±70V DC with both power supply and good filter We recommend using 10‑18" 4Ω~8Ω speakers
●Short circuit protection: The sound output has short circuit protection, please be careful not to shorten the circuit. To prevent the board burn, do not attempt to connect the positive and negative poles of the power source
●Basic parameter: The rated power supply voltage of the power amplifier board is ±70V of 2 power supply, and the voltage is between ±55~±80V (except overvoltage burnout! )
●Note: Before turning on the power, please check the wiring to make sure the wiring is correct before turning on the power


Description

Specifications:
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 Power: 500W (±70v Power Supply, 4 Ohm Load, 1% Distortion)
Efficiency: >=90%
Signal-to-Noise Ratio: 90dB
Total Harmonic Distortion:
380W (±70 Power 4 Ohm Speaker, Distortion <0.1%)
280W (±70 Power 8 Ohm Speaker, Distortion <0.1%)
Frequency Response Range: 20Hz ~ 20KHz
Speaker: 4-8Ω
Voltage Magnification: 50X
Input Sensitivity: 1V (RM)
Output short circuit protection: Yes
Output DC Bias Protection is Speaker Protection: Yes
Overheating Protection: Yes, when the heatsink FET temperature exceeds 100℃, the output will be off.

Package List:
1 x Amplifier Board