Specification:
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 to ±80V
Rated Output Power: 500W (±70v Power Supply 4 Ohm Load, Distortion 1%)
Efficiency: >=90%
Signal to Noise Ratio: 90dB
Total Harmonic Distortion:
380W (±70 Power Supply 4 Ohm Speakers, Distortion <0.1%)
280W (±70 Power Supply 8 Ohm Speakers, Distortion <0.1%)
Frequency Response Range: 20Hz-20KHz
Speaker: 4-8Ω
Voltage Magnification: 50 Times
Input Sensitivity 1V (RMs)
Output Short Circuit Protection: Yes
Output DC Bias Protection is Speaker Protection: Yes
Over Temperature Protection: Yes, the Heat Sink Fet Temperature is Higher Than 100℃, the Output is Turned off
Package List:
1 x Amplifier Board
Note:
1. Attention: According to the power formulas P=UxU/R=voltagexvoltage/load, the power is determined by the voltage and the load. The higher the voltage and the smaller the load, the greater the power. The supply voltage range of the board refers to this The voltage boards within the range can work normally, but not all voltages and load power is as large as the marked power output. For example, 12V power supply 4 ohm load, the maximum power is 15W, and 8 ohms power maximum 7.5W; 24V power supply is 4 ohms, The maximum power is 50W, and the maximum power is 25W at 8 ohms; at any time, the power of the power supply must be greater than the power of the power amplifier, otherwise the high volume will not move, the power will be reduced and the sound will be cut off, and the corresponding power output will not be achieved.
2. If it is a toroidal transformer, since it does not have the function of voltage regulation, the voltage will fluctuate with the power grid, please use it with a margin.
3. Please allow some errors due to manual measurement.