Digital Amplifier Board Professional 500W HiFi Single Channel Class D Sound Amplifier Module for DIY Sound System

Feature: 1. Professional Manufacturing: It is a 500W class D sound amplifier, mainly used in home theater and with speakers. 2. Circuit Optimization: Single channel class d sound amplifier board adopts circuit optimization and adds speaker relay protection. 3. Unique Design: Digital amplifier board: can turn on the delay, turn off the instantaneous break, effectively solve the switch on and off the shock sound. 4. Relay Power Supply: Digital stereo power amp module with its own relay power supply, external 110V 220V AC can be. 5. Premium Material: Single channel class d sound amplifier board using PCB material, high density, safe and reliable, aging resistance. Specification: Item Type: Digital Power Amplifier Board Material: PCB Power Amplifier Plate Size: Approx. 105x43x28mm 4.13x1.69x1.10in Supply Voltage: Dual DC Power Supply + 45 + 70V (Recommended + 65V Power Supply Can Be) Rated Output Power: 500W (+ 65V Power Supply 4 Ohm Load, Distortion 1percent ) Efficiency: >= 90percent SNR: 90db Total Harmonic Distortion: 380W (+ 70 Powered 4 Ohm Speaker, Distortion <0.1percent ) 280W (+ 70 Powered 8 Ohm Speaker, Distortion <0.1percent ) Frequency Response Range: 20Hz 20KHz Horn: 4 8 Ohm Voltage Amplification: 50 Times Input Sensitivity 1V (RMS) Output DC Bias Protection I.E. Horn Protection: Yes. Package List: 1 x Digital Power Amplifier Board Note: Please allow some error in manual measurement.